And by "defeat", I clearly mean by either pinfall or submission (although the latter is far less likely to happen.) And it doesn't have to be a clean loss, although that's kind of the general idea I'm going for. To date, there have only been two people since Brock returned in 2012 who have managed to score a pinfall victory over him - John Cena and Triple H - and both of those guys had their asses handed to them on a silver platter by Brock elsewhere. Everyone else who has stepped up to Lesnar has fallen to his wrath, and that includes the Undertaker himself, who even had to suffer through having his undefeated Wrestlemania streak ended at the hands of our beloved Viking Space Lord, and he's been on a dominant roll more than ever since that happened. But obviously Brock is gonna suffer another loss at some point, so when the time finally arrives (most likely at Wrestlemania 32), who do you think will/should be the one that hands him what would only be his third legitimate loss? Roman Reigns? Kevin Owens? Seth Rollins? A returning Steve Austin or Rock (although they've already planted the seeds for a match between he and HHH) at next year's Mania? Daniel Bryan (lol)?