Lashley vs Brock has been so one-sided that it seems like Brock is gonna lose, and it would make sense that he's losing that match if he's gonna enter the Royal Rumble and win. Unless they've kept The Rock's involvement secret, it also seems very likely the WM main event is Brock vs Roman, so it'd make sense that way also. I think it's gonna be Brock. If not, then Big E would be a good choice but I don't think they'll do it. Riddle is tied up with Orton and it seems like that match is coming at Mania. I doubt they'd give it to AJ, they like AJ because he can lose, be wherever on the card, and not need a super push and he's still over all the time. Doubt it's Rollins if he;s losing to Roman that night. It seems like it's gotta be Brock