For years, George Hincapie was not only a key cog on Lance Armstrong's cycling team but also one of Armstrong's closest friends.
Now, according to a report by 60 Minutes, Hincapie has joined other members of Armstrong's inner circle in claiming the seven-time Tour de France winner used performance-enhancing drugs.
In what could prove to be some of the most damaging testimony yet against the world's most famous cyclist, Hincapie reportedly told the grand jury in the Armstrong case that he and Armstrong supplied each other with the endurance-boosting substance EPO and discussed having used another banned substance, testosterone, to prepare for races.
The segment of the 60 Minutes report dealing with Hincapie, which cites unidentified sources, aired Friday night on the CBS Evening News. A day earlier, the network broadcast an interview with another former member of Armstrong's U.S. Postal Service team, Tyler Hamilton, who said he also used PEDs with Armstrong.
Hincapie often has been depicted as one of Armstrong's most loyal teammates on the U.S. Postal team and was with him for all seven Tour victories. In an interview last year, Armstrong said Hincapie was "like a brother to me."
Hincapie is among a number of former Armstrong teammates and employees who have appeared before a federal grand jury in Los Angeles investigating doping in cycling. Hamilton said he testified for six hours before the panel.
Armstrong has never tested positive and has steadfastly denied doping.
Asked to comment on the newest 60 Minutes report, Armstrong spokesman Mark Fabiani said: "We have no way of knowing what happened in the grand jury and so can't comment on these anonymously sourced reports."
Reached by The Associated Press at the Tour of California in Solvang, Hincapie said he didn't want to talk about the 60 Minutes report.
"It's just unfortunate that that's all people want to talk about now," he said. "I'm not going to partake in any cycling-bashing.
"I have done everything to be the best I can be … I want the focus on the future of the sport, what it's done to clean itself up. I believe in cycling and want to support it."
Later, Hincapie released a statement through his attorney: "I can confirm to you that I never spoke with 60 Minutes. I have no idea where they got their information.
"As I've said in the past, I continue to be disappointed that people are talking about the past in cycling instead of the future. As for the substance of anything in the 60 Minutes story, I cannot comment on anything relating to the ongoing investigation."
The Hincapie and Hamilton revelations come a year after Floyd Landis, who had his 2006 Tour title stripped for using steroids, turned the focus of the feds' cycling investigation onto Armstrong, claiming he and Armstrong had both used drugs while on the U.S. Postal team.
But while Hamilton and Landis have credibility problems that Armstrong has pointed out — both cyclists denied using drugs for years before changing their story and implicating Armstrong — there aren't nearly as many issues with Hincapie.
The 37-year-old cyclist from New York has no known positive tests. He was on the Postal team even before Armstrong and, once Armstrong joined it, the two were frequent roommates on the road.
When Landis alleged that drug use was common on the U.S. Postal team — and included Hincapie among those who doped -- Hincapie responded by saying, "It bothers me, because I've been doing this for 17 years and never heard anything bad about me."
After CBS aired the Hamilton interview Thursday night, the cyclist gave his 2004 Olympic gold medal back to the U.S. Anti-Doping Agency, which said it is working with the International and U.S. Olympic committees on an investigation.
"60 Minutes" also released an excerpt from another Armstrong teammate, Frankie Andreu, who said he took banned substances because lesser riders he believed were doping were passing him during races.
"Things were just getting faster and faster and sprinters were getting over the big mountains and winning, you know, climbing stages," Andreu said in the interview. "There's 200 guys flying over these mountains and you can't even stay in the group.
"And it's just impossible to keep up. And it's like, 'What the hell's going on here?"'
After the Hamilton and Andreu interviews went public, Armstrong launched a website refuting the claims and calling into question the credibility of Andreu, Hamilton and Landis. He also posted a letter addressed to CBS News, calling the 60 Minutes reporting "disgraceful journalism."