Boxer Muhammad Ali was arguably the greatest trash talker in history. But even he has admitted all the famous rhymes about floating like a butterfly and stinging like a bee were more about promoting fights than getting inside an opponent's head. Modern day pugilists Mike Tyson and Floyd Mayweather, Jr. have continued this tradition, insulting and threatening opponents in pre-fight press conferences, but it’s the stars of the NBA who have elevated trash talking to new heights in an attempt to get under an opponent's skin.