Reigns never got the chance to defeat Lesnar at WrestleMania 31 after Seth Rollins cashed in .
As for his possible opponent , Ambrose is being considered to win the 30 - man Rumble match , but Brock Lesnar is the obvious choice .
Reigns never got the chance to defeat Brock Lesnar at WrestleMania 31 after Seth Rollins cashed in .
As for his possible opponent , Ambrose is being considered to win the 30 - man Rumble match , but Brock Lesnar is the obvious choice .