2013 Topps UFC Knockouts Fighter Autographs #CM Conor McGregor Rookie Autograph card sees Topps venture into the world of Mixed Martial Arts with this superb PSA GEM MT 10 issue. Notorious is in fine form in his most iconic rookie card, with only a Pop 25 registering a 10 grade. The boisterous and rugged Irishman is arguably the most popular star in MMA history, with UFC Featherweight and Lightweight Double-Championships under his belt, and this year he was ranked as the highest paid athlete in the world by the esteemed Forbes magazine.