Seth Petruzelli's name may not me immediately familiar to many wrestling fans, but he holds an interesting distinction - in 2008, the former UFC competitor became the first man to defeat Kimbo Slice. In Petruzelli's 13-year career, he fought for UFC, Bellator, WEC, and EliteXC, but he'll always be best remembered for his victory over Slice. The fight aired live on CBS, and was seen by more than 4.5 million people. Petruzelli works as a coach in NXT, but what could a "real" fighter like Petruzelli have to teach wrestlers? The former fighter actually teaches striking, making sure that punches and kicks look more devastating.