Frank Mir's career has featured peaks and valleys.
He was once the most feared heavyweight in the UFC, a man that snapped Tim Sylvia's arm like a toothpick. However, a motorcycle crash soon followed that threatened to end his career.
Mir came surging back in 2007 and 2008 with wins over Antoni Hardonk, Brock Lesnar and Antonio Rodrigo Nogueira and Frank found himself as the interim UFC heavyweight champion.
This honor was short-lived, and he dropped subsequent fights to Brock Lesnar and Shane Carwin in a couple of the most brutal knockout losses in recent memory.
Frank has since rebounded again by knocking out Mirko Cro Cop and now looks to get back into the upper crust of the heavyweight division when he fights Roy "Big Country" Nelson at UFC 130 on May 28th.