The list of famous athletes who legally changed their name is surprisingly long. Cassius Clay changed his name to Muhammad Ali (pictured). Most Saints fans know that Deuce McAllister's birth name was Dulymus Jenod McAllister. He legally had it changed to Deuce McAllister, even though the public didn't know him by his birth name. Tiger Woods? Not his birth name. Let's take a look at the top 10 most famous name changes in sports.