Antônio Silva is a Brazilian professional mixed martial artist and kickboxer who competes in the Heavyweight division. A professional MMA competitor since 2005, he has competed for the UFC, Strikeforce, EliteXC, Cage Rage, Fight Nights Global, World Victory Road, K-1 HERO'S, and Cage Warriors. He is the former EliteXC Heavyweight Champion, Cage Rage World Heavyweight Champion, and Cage Warriors Super Heavyweight Champion.