STORY HIGHLIGHTS
- NEW: Armstrong says he told his son: "Don't defend me anymore"
- He says he deserves punishment, but not the "death penalty"
- Part two of Armstrong's interview with Oprah Winfrey aired Friday night
Share your thoughts on the downfall of Lance Armstrong at CNN iReport, Facebook or Twitter.
(CNN) -- Legendary and now disgraced cyclist Lance Armstrong told Oprah Winfrey during a confessional interview that he hopes to compete again.
"If you're asking me do I want to compete again, the answer is hell yes. I'm a competitor," Armstrong said during the second part of a two-part interview, which aired Friday on Winfrey's OWN channel and online.
"I can't lie to you. I'd love the opportunity to be able to compete, but that isn't the reason that I'm doing this. Frankly, this may not be the most popular answer, but I think I deserve it," he said.
In part one of the interview, which aired Thursday, Armstrong admitted, unequivocally and for the first time, that he used performance-enhancing drugs on the way to seven Tour de France wins.

Oprah Winfrey speaks with Lance Armstrong during an interview on the controversy surrounding his cycling career on Monday, January 14, in Austin, Texas. Oprah Winfrey's exclusive no-holds-barred interview with Lance Armstrong, "Oprah and Lance Armstrong: The Worldwide Exclusive," has expanded to air as a two-night event on OWN: Oprah Winfrey Network. The interview airs Thursday, January 17, and Friday, January 18.
Cyclist Lance Armstrong has been stripped of his seven Tour de France wins and banned from the tournament for life, the International Cycling Union announced Monday, October 22. Pictured, Armstrong addresses participants at The Livestrong Challenge Ride on Sunday. He stepped down as chairman of his Livestrong cancer charity on Wednesday, October 17.
Armstrong leads his teammates during the final stage of the 1999 Tour de France.
Armstrong, 17, competes in the Jeep Triathlon Grand Prix in 1988. He became a professional triathlete at age 16 and joined the U.S. National Cycling Team two years later.
In 1995, Armstrong wins the 18th stage of the Tour de France. He finished 36th overall and finished the race for the first time that year.
Armstrong rides for charity in May 1998 at the Ikon Ride for the Roses to benefit the Lance Armstrong Foundation. He established the foundation to benefit cancer research after being diagnosed with testicular cancer in 1996. After treatment, he was declared cancer-free in February 1997.
Armstrong takes his honor lap on the Champs-Élysées in Paris after winning the Tour de France for the first time in 1999.
After winning the 2000 Tour de France, Armstrong holds his son Luke on his shoulders.
Armstrong rides during the 18th stage of the 2001 Tour de France. He won the tour that year for the third consecutive time.
Armstrong celebrates winning the 10th stage of the Tour de France in 2001.
After winning the 2001 Tour de France, Armstrong presents President George W. Bush with a U.S. Postal Service yellow jersey and a replica of the bike he used to win the race.
Armstrong celebrates on the podium after winning the Tour de France by 61 seconds in 2003. It was his fifth consecutive win.
Jay Leno interviews Armstrong on "The Tonight Show" in 2003.
After his six consecutive Tour de France win in 2004, Armstrong attends a celebration in his honor in front of the Texas State Capitol in Austin.
Armstrong arrives at the 2005 American Music Awards in Los Angeles with his then-fiancee Sheryl Crow. The couple never made it down the aisle, splitting up the following year.
Armstrong holds up a paper displaying the number seven at the start of the Tour de France in 2005. He went on to win his seventh consecutive victory.
As a cancer survivor, Armstrong testifies during a Senate hearing in 2008 on Capitol Hill. The hearing focused on finding a cure for cancer in the 21st century.
In 2009, Armstrong suffers a broken collarbone after falling during a race in Spain along with more than a dozen other riders.
Young Armstrong fans write messages on the ground using yellow chalk ahead of the 2009 Tour de France. He came in third place that year.
Armstrong launches the three-day Livestrong Global Cancer Summit in 2009 in Dublin, Ireland. The event was organized by his foundation.
In May 2010, Armstrong crashes during the Amgen Tour of California and is taken to the hospital. That same day, he denied allegations of doping made by former teammate Floyd Landis.
Ahead of what he said would be his last Tour de France, Armstrong gears up for the start of the race in 2010.
Lance Armstrong looks back as he rides in a breakaway during the 2010 Tour de France.
Armstrong finishes 23rd in the 2010 Tour de France. He announced his retirement from the world of professional cycling in February 2011. He said he wants to devote more time to his family and the fight against cancer.
Armstrong's son Luke; twin daughters, Isabelle and Grace; and 1-year-old son, Max, stand outside the Radioshack team bus on a rest day during the 2010 Tour de France.
The frame of Armstrong's bike is engraved with the names of his four children at the time and the Spanish word for five, "cinco." His fifth child, Olivia, was born in October 2010.
In February 2012, Armstrong competes in the 70.3 Ironman Triathlon in Panama City. He went on to claim two Half Ironman triathlon titles by June. He got back into the sport after retiring from professional cycling.
Lance Armstrong over the years
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Photos: Lance Armstrong over the years

Oprah Winfrey speaks with Lance Armstrong during an interview on the controversy surrounding his cycling career on Monday, January 14, in Austin, Texas. Oprah Winfrey's exclusive no-holds-barred interview with Lance Armstrong, "Oprah and Lance Armstrong: The Worldwide Exclusive," has expanded to air as a two-night event on OWN: Oprah Winfrey Network. The interview airs Thursday, January 17, and Friday, January 18.
Cyclist Lance Armstrong has been stripped of his seven Tour de France wins and banned from the tournament for life, the International Cycling Union announced Monday, October 22. Pictured, Armstrong addresses participants at The Livestrong Challenge Ride on Sunday. He stepped down as chairman of his Livestrong cancer charity on Wednesday, October 17.
Armstrong leads his teammates during the final stage of the 1999 Tour de France.
Armstrong, 17, competes in the Jeep Triathlon Grand Prix in 1988. He became a professional triathlete at age 16 and joined the U.S. National Cycling Team two years later.
In 1995, Armstrong wins the 18th stage of the Tour de France. He finished 36th overall and finished the race for the first time that year.
Armstrong rides for charity in May 1998 at the Ikon Ride for the Roses to benefit the Lance Armstrong Foundation. He established the foundation to benefit cancer research after being diagnosed with testicular cancer in 1996. After treatment, he was declared cancer-free in February 1997.
Armstrong takes his honor lap on the Champs-Élysées in Paris after winning the Tour de France for the first time in 1999.
After winning the 2000 Tour de France, Armstrong holds his son Luke on his shoulders.
Armstrong rides during the 18th stage of the 2001 Tour de France. He won the tour that year for the third consecutive time.
Armstrong celebrates winning the 10th stage of the Tour de France in 2001.
After winning the 2001 Tour de France, Armstrong presents President George W. Bush with a U.S. Postal Service yellow jersey and a replica of the bike he used to win the race.
Armstrong celebrates on the podium after winning the Tour de France by 61 seconds in 2003. It was his fifth consecutive win.
Jay Leno interviews Armstrong on "The Tonight Show" in 2003.
After his six consecutive Tour de France win in 2004, Armstrong attends a celebration in his honor in front of the Texas State Capitol in Austin.
Armstrong arrives at the 2005 American Music Awards in Los Angeles with his then-fiancee Sheryl Crow. The couple never made it down the aisle, splitting up the following year.
Armstrong holds up a paper displaying the number seven at the start of the Tour de France in 2005. He went on to win his seventh consecutive victory.
As a cancer survivor, Armstrong testifies during a Senate hearing in 2008 on Capitol Hill. The hearing focused on finding a cure for cancer in the 21st century.
In 2009, Armstrong suffers a broken collarbone after falling during a race in Spain along with more than a dozen other riders.
Young Armstrong fans write messages on the ground using yellow chalk ahead of the 2009 Tour de France. He came in third place that year.
Armstrong launches the three-day Livestrong Global Cancer Summit in 2009 in Dublin, Ireland. The event was organized by his foundation.
In May 2010, Armstrong crashes during the Amgen Tour of California and is taken to the hospital. That same day, he denied allegations of doping made by former teammate Floyd Landis.
Ahead of what he said would be his last Tour de France, Armstrong gears up for the start of the race in 2010.
Lance Armstrong looks back as he rides in a breakaway during the 2010 Tour de France.
Armstrong finishes 23rd in the 2010 Tour de France. He announced his retirement from the world of professional cycling in February 2011. He said he wants to devote more time to his family and the fight against cancer.
Armstrong's son Luke; twin daughters, Isabelle and Grace; and 1-year-old son, Max, stand outside the Radioshack team bus on a rest day during the 2010 Tour de France.
The frame of Armstrong's bike is engraved with the names of his four children at the time and the Spanish word for five, "cinco." His fifth child, Olivia, was born in October 2010.
In February 2012, Armstrong competes in the 70.3 Ironman Triathlon in Panama City. He went on to claim two Half Ironman triathlon titles by June. He got back into the sport after retiring from professional cycling.
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
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Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
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Lance Armstrong over the years
Lance Armstrong over the years
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Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
Lance Armstrong over the years
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Photos: Lance Armstrong over the years
Armstrong emotional over apology to son
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Critic: Armstrong has to pay the price
Armstrong says first wife knew he doped
Armstrong's body language examined
Armstrong's body language examined
Lance Armstrong's trail of pain
Armstrong's denials through the years
Analyst: Armstrong mea culpa 'brave'
Analyst: Armstrong mea culpa 'brave'
Bissinger: 'He said he was sorry'
Bissinger: 'He said he was sorry'
When asked whether he felt disgraced, Armstrong said that he did.
"But I also feel humbled. I feel ashamed. This is ugly stuff," he said during the second part of the interview.
Armstrong, who has been stripped of his Tour de France titles and an Olympic bronze medal, blamed no one but himself for his doping decisions, and was careful not to implicate others.
7 lessons Armstrong's confession has taught us
"I deserve to be punished," Armstrong told Winfrey. But, he said: "I'm not sure that I deserve a death penalty," comparing his punishment to the lesser punishments of other cyclists who doped.
"I'm not saying that that's unfair necessarily, but I'm saying it's different," Armstrong said.
The U.S. Anti-Doping Agency hit Armstrong with a lifetime ban after the agency issued a 202-page report in October that said there was overwhelming evidence he was directly involved in a sophisticated doping program.
Armstrong, in the first part of the interview, talked about the culture of cycling at the time he competed, telling Winfrey that doping was widespread then and just as much "part of the job" as water bottles and tire pumps. The former cyclist said he didn't view using banned drugs then as cheating. "I viewed it as a level playing field."
The scandal has tarred the Livestrong cancer charity that Armstrong founded and brought an end to his endorsement deals.
He described to Winfrey stepping down from that charity, which he characterized as his "sixth child." That moment, he said, was his most humbling.
"To make that decision and to step aside was -- that was big," he said in Friday's broadcast. "It was the best thing for the organization, but it hurt like hell."
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12 telling quotes over the years from Armstrong
Armstrong told his son: Don't defend me anymore
Throughout both parts of the interview with Winfrey, Armstrong spoke steadily and showed little emotion.
That changed when Armstrong spoke about his family, and especially his kids.
Appearing to hold back tears, Armstrong said he confessed to the three oldest children over the recent holiday break. "The older kids need to not be living with this issue in their lives," the athlete said. "It isn't fair."
Speaking specifically about his 13-year-old son, who he had heard defending him, Armstrong said he told the youth: "Don't defend me anymore."
During the first part of the interview, Armstrong described himself as "deeply flawed" and "arrogant," and spoke often of how so much was his "fault."
10 alternative steps to redemption for Armstrong
"I was a bully," he told Winfrey of how he treated others who might expose him.
But Armstrong was not telling the whole story, author David Coyle, who wrote a book about doping and the Tour de France, told CNN's Anderson Cooper on Thursday night.
"A partial confession is sort of the pattern here," he said. "Maybe this is Armstrong's partial, and more will come out later."
The cyclist denied pushing teammates to dope, an assertion Coyle countered.
"Tyler Hamilton gets a phone call: Be on a plane tomorrow. We're flying to Valencia to do a blood transfusion. That's what happens," Coyle said.
Armstrong described his years of denial as "one big lie that I repeated a lot of times." He had races to win and a fairy tale image to keep up.
He reminisced on his storied past of being a hero who overcame cancer, winning the Tour repeatedly, having a happy marriage, children. "It's just this mythic, perfect story, and it isn't true," he said.
Bleacher Report: Twitter erupts Thursday night
Former teammate: More needs to happen
Former cyclist Tyler Hamilton, who raced as a teammate of Armstrong from 1998 to 2001, said it was nice to hear Armstrong own up to some of his faults.
Hamilton was among those who broke from Armstrong and decried his use of performance-enhancing drugs. Armstrong at the time denied the allegations and threatened him with legal action.
"He's made the first step," Hamilton told CNN's Piers Morgan before the second interview aired. "There are many more steps to come for Lance Armstrong."
According to Hamilton, the next step for the disgraced cyclist is to testify before cycling officials about the doping network, naming names as needed.
The U.S. Anti-Doping Agency, which tests Olympic athletes for performance-enhancing drugs, similarly described the interview as a "small step in the right direction."
Who is the next cycling hero?
"If he is sincere in his desire to correct his past mistakes, he will testify under oath about the full extent of his doping activities," USADA CEO Travis Tygart said.
The International Cycling Union called it "disturbing" to see Armstrong's confessions, but it said the sport is much different today than it was 10 years ago.
"Lance Armstrong's decision finally to confront his past is an important step forward on the long road to repairing the damage that has been caused to cycling and to restoring confidence in the sport," union president Pat McQuaid said.
Livestrong to likely survive Armstrong doping admission
Years of success and defiance, then a rapid fall
After winning various legs of the Tour de France, Armstrong's sporting career ground to a halt in 1996, when he was diagnosed with cancer. He was 25.
Why we cheat
He told Winfrey that he then developed a "ruthless and relentless" attitude that helped him survive. But he carried it with him into his sports career, "and that's bad," he said.
He returned to the cycling world, however. His breakthrough came in 1999, and he didn't stop as he reeled off seven straight wins in his sport's most prestigious race. Allegations of doping began during this time, as did Armstrong's vehement defiance.
He left the sport after his last win, in 2005, only to return to the tour in 2009.
Armstrong still insists he was clean when he finished third that year, but that comeback led to his downfall.
"We wouldn't be sitting here if I didn't come back," he told Winfrey.
In 2011, Armstrong retired once more from cycling. But his fight to maintain his clean reputation continued. Federal prosecutors launched a criminal investigation, but it was dropped in February.
Cancer survivors have mixed feelings on Armstrong
In April, the USADA notified Armstrong of an investigation into new doping charges. In response, the cyclist accused the organization of trying to "dredge up discredited" allegations and filed a lawsuit in federal court trying to halt the case.
Those who suffered for speaking out now feel vindicated.
They include Betsy Andreu, wife of fellow cyclist Frankie Andreu, who said she overheard Armstrong acknowledge to a doctor treating him for cancer in 1996 that he had used performance-enhancing drugs.
"This was a guy who used to be my friend, who decimated me," Andreu told CNN's Anderson Cooper on Thursday night. "He could have come clean. He owed it to me. He owes it to the sport that he destroyed."
The former athletic icon conceded he'd let down many fans "who believed in me and supported me."
"I will spend the rest of my life ... trying to earn back trust and apologize to people."
Opinion: A loss for Lance, a win for Oprah
CNN's Greg Botelho, Ben Brumfield, Carol Cratty, Joseph Netto and George Howell contributed to this report.