Round 1: Tiger vs. Ruud
Who is the best athlete in the world? Vote in this first-round matchup!
Ruud van NistelrooyStriker, Manchester Utd/Netherlands
On the list because the old guard is altering its courses just to keep him down.
On the list because soccer is the world's most demanding run, Man U is its elite team, and Ruud's the most dangerous guy on the side.
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