Mark Kerr (born December 21, 1968 in Toledo, Ohio), also known as The Smashing Machine, The Titan, and The Specimen, is an American champion collegiate wrestler and retired mixed martial artist. During his MMA career he was regarded by many as the best fighter in the world, and was a World Vale Tudo Championship tournament winner, a two-time UFC heavyweight tournament winner, and a PRIDE FC competitor.
In 2003 Kerr was the subject of an HBO documentary titled The Smashing Machine, which detailed his MMA career fighting in Vale Tudo, the UFC and PRIDE. The Smashing Machine also focused on Kerr's eventual addiction to opiates, his relationships with his then-girlfriend, various training partners, and his friendship with Mark Coleman.
Mark Kerr was born in Toledo, Ohio to Tom and Mary Kerr. From early childhood, he would dream of being in the World Wrestling Federation and would hold mock fights with his younger siblings in the back yard.