Castroneves' future uncertain after federal tax-evasion charges filed
Helio Castroneves was on top of the world. The racing world respected him for his accomplishments on the racetrack. The American public admired him for his footwork on the dance floor. Is the American dream over for the two-time Indy 500 champ?
Updated: October 5, 2008, 7:14 PM ETBy John Oreovicz | Special to ESPN.com