#1 Roman Reigns
Well, surprise surprise(or not)! Although The Big Dog may not need his status elevated any further, this feud can make sense purely from a storyline standpoint.
With WWE doing all they can to keep eyes on their product amidst tougher competition and dropping ratings, a high profile feud involving two of the biggest stars the company has could be just what they need.
It wouldn’t even be the first time The Undertaker has been unhappy about a WrestleMania loss and returned to set things right. Brock Lesnar too felt the Deadman’s wrath after pinning him at ‘Mania.
We could see The Undertaker turn on Roman Reigns and set up the sequel to their (largely forgettable) WrestleMania match. As unlikely as this may seem right now, one can never say never in the world of professional wrestling. We may still see The Undertaker stake claim to the yard that The Big Dog now calls his own.