Members of the media surround Lance Armstrong and other riders on Sunday in Adelaide, Australia, before the start of the Cancer Council Classic, a prelude to the Tour Down Under. (Jamie McDonald / AFP / Getty Images)
Lance Armstrong, who is returning to pro bicycle racing after a 3 1/2-year layoff, signs autographs for fans in Adelaide, Australia, on Sunday before a prelude to the Tour Down Under, which starts on Tuesday. (Ezra Shaw / Getty Images)
Lance Armstrong takes part Sunday in the prelude to the Tour Down Under, which begins Tuesday, in Adelaide, Australia. (Ezra Shaw / Getty Images)
Lance Armstrong conducts an interview during a training session Monday in Adelaide, Australia, where he will make his return to competitive pro cycling in the Tour Down Under on Tuesday. (Ezra Shaw / Getty Images)
Lance Armstrong greets cancer patient Jim Darby during a visit to the Royal Adelaide Hospital on Monday. Armstrong, who makes his return to pro cycling on Tuesday in the Tour Down Under, kicked off the Livestrong Global Cancer Campaign on Monday during a visit to the hospital. (Dave Hunt / EPA)
Seven-time Tour de France winner Lance Armstrong signs an autograph for a cancer patient Monday during his visit to the Royal Adelaide Hospital. Armstrong makes his return to pro cycling on Tuesday in the Tour Down Under. In the 1,274 days since he last raced, 27.5 million people have died from cancer. (Jamie McDonald / AFP / Getty Images)
