Andrei Arlovski

Andrei “The Pit Bull” Arlovski is the Belarusian heavyweight who won the interim UFC title in 2005 by submitting Tim Sylvia, became undisputed champion and defended it once before Sylvia knocked him out in 2006.

He left for Affliction, Strikeforce and EliteXC, losing to Fedor Emelianenko with a flying knee, then came back to the UFC in 2014 and fought on into his 40s, setting the record for most wins in UFC heavyweight history. He later became BKFC heavyweight champion. CagePotato covered his collapse and remarkable comeback.