I think Roman Reigns can.
Roman Reigns really could beat Brock Lesnar. If, He's defeating Randy Orton, Daniel Bryan, Triple H, Batista and more. That does you could beat Brock Lesnar at WrestleMania 31. He'll never going to miss this opportunity..
No Clarence Clown Can't!
I believe he can as well. He is the only one on the roster at the moment who can give Brock a run for his money.
HE CAN
HE CAN
BEEEELIEVE THAT!!!!!