https://www.youtube.com/watch?v=aMBADEPoiTk
Darko Milicic, whom you may remember as an NBA bust taken second overall by the Detroit Pistons in the 2003 NBA Draft just behind LeBron James and ahead of players like Carmelo Anthony, Chris Bosh, and Dwyane Wade, has given up basketball and taken up kickboxing. He recently had his first fight and appeared to be holding his own against an opponent with a clear size disadvantage. Sadly, victory was not to be as Darko ended up with a nasty gash in his shin (3:35 mark) and the fight had to be stopped. But if this video is any indication, I think Darko could have a future in this. At the very least he should have no problem being more successful than he was at basketball.