Wanderlei César da Silva ( ; ; born July 3, 1976) is a Brazilian retired mixed martial artist. He is nicknamed ""The Axe Murderer"" and ""Cachorro Louco"". Silva is best known for his time in Pride Fighting Championships and the Ultimate Fighting Championship (UFC) promotions. He is the record holder for most wins, knockouts, title defenses, and longest winning streak in PRIDE history. He has a black belt in Brazilian jiu-jitsu and black prajied in Muay Thai. He is known for his aggressive fighting style with the most of his fights ending in either a knockout or referee stoppage because of strikes.