Lance Armstrong's announcement Tuesday that he will return to professional road racing after a three-year break raised more questions than it answered.
Armstrong, a cancer survivor, said in a statement he was racing again "to raise awareness of the global cancer burden." He gave no information about a race schedule or what team he would ride for, saying he would elaborate Sept. 24 at the Clinton Global Initiative in New York.
Armstrong had told Vanity Fair he was going to try to win an eighth Tour in an interview posted on the magazine's Web site Tuesday.
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