Nick Diaz, water polo player? As strange as that may sound, the Strikeforce Welterweight champ once sought glory inside a swimming pool. Good thing that didnt work out, as Nick and his brother Nathan have become two of MMAs most popular — and controversial fighters. In part 1 of this FIGHT! Life series, the Diaz boys take us back to their rough-and-tumble days of growing up in Stockton, America’s fifth most dangerous city.