Armstrong Teammates: We'll Testify Against Him Floyd Landis, Tyler Hamilton also working with anti-doping group By Matt Cantor, Newser User Posted Jul 6, 2012 10:53 AM CDT 14 comments Comments Lance Armstrong at the 2012 Paris Roubaix cycle race. (Getty Images) (Newser) – Lance Armstrong's former teammates are planning to testify against the champion cyclist amid doping charges, insiders tell the New York Times. George Hincapie, Levi Leipheimer, Christian Vande Velde, and David Zabriskie have all said they'd testify on behalf of the US Anti-Doping Agency. "I’m sad he is going through this," says Hincapie, who rode alongside Armstrong each time he won the Tour de France. "He’s done so many things for the sport." Hincapie wouldn't comment on whether he plans to testify, but added, "I feel like I’ve always done the right thing for the sport." Cyclists Floyd Landis and Tyler Hamilton, both tied to doping, will also help the agency make its case. Armstrong had some harsh words for his teammates—who are currently racing in the Tour de France—on Twitter. "Come in and tell @usantidoping exactly what they wanted to hear in exchange for immunity, anonymity, and an opportunity to continue to race the biggest event in cycling," he posted. But the agency's CEO was supportive. "The truth would often be suppressed without witnesses who at great cost to themselves are willing to tell the truth under oath about what they saw and experienced," he said, warning that bullying of such witnesses "cannot be tolerated."