One of the best to ever step in the Octagon, Georges St Pierre has announced his retirement. He's only fought sporadically over the last few years, dealing with injuries and illnesses, and now has made the decision to call it quits. GSP held both the welterweight and middleweight titles during his career. And personally, he's probably one of my very favorite fighters. I'll miss seeing him fight. Read more on his retirement HERE
Check out this look back at his career.