2004 U.S. National Champion in freestyle wrestling (96kg).
A former UFC two-division world champion, having held both the heavyweight and light heavyweight world championship belts.
Was the second of four fighters in UFC history to hold titles in two weight classes simultaneously, and the first and, as of late 2019, the only fighter to defend titles in two weight classes.
Former Strikeforce Heavyweight Grand Prix Champion and King of the Cage Heavyweight Champion.