Team: Boston Celtics
Rajon Rondo has been known throughout his career as a difficult player, but his rumored fight with coach Doc Rivers would really take things up a level. As the story goes, the two (who used to bicker on and off the court routinely) nearly came to blows during a team meeting after Rondo cursed at his coach, and had to be separated by players and coaches on the scene. While GM Danny Ainge denied that this had anything to do with Rivers' considering a move to the Clippers, in doing so he also failed to deny that it was true in the first place. Doc is now entrenched on the L.A. bench, while Rondo is still in Boston recovering from a torn ACL he suffered last season.