Golf champion Tiger Woods is on the road to becoming the first billionaire athlete, according to Forbes magazine. Forbes based theirÂ calculationsÂ on his estimated earnings from 1996, they said that Tiger should have earnings exceed $1 billion by 2010. Forbes said Tiger will be the only billionaire who’s made that money by playing sports. Tiger placed #2 on ForbesÂ Celebrity 100 list this year with an estimated income of $115 million. Tiger took the beating by Oprah as she took the #1 spot on the Forbes list. Tiger has endorsement deals withÂ Nike, Accenture, Buick and Gillette and a five-year agreement for his own line of Gatorade drink.