Marion Jones

Cheating, betting, and scandals have been a part of sports ever since the beginning, whether it's to gain a competitive advantage over an opponent, rake in some extra cash, or a temptation that was just too hard to resist.

The only thing worse than all of those things, though, is lying about it. Sooner or later the truth will come out, and when it does, get ready.

These 10 sports figures lied to millions of fans, and are worthy of being named the top 10 liars in sports history.