Question: Which professional sports does the athlete, born in 1977, who has defended the championship title as many times as the American professional mixed martial artist Stipe Miocic, play? 
Sentence (from "Brock Lesnar"): Brock Edward Lesnar ( ; born July 12, 1977) is an American professional wrestler and former professional mixed martial artist, professional American football player and amateur wrestler who is currently signed with WWE.
Relevant evidence: Yes