10 Worst Case Scenarios For WWE WrestleMania 34

It's the definition of insanity, isn't it?

WWE already had to pull the plug on a WrestleMania coronation for Roman Reigns two years ago, when - paired with Brock Lesnar in the world title main event - he simply failed to elicit the sort of response they were hoping from the difficult WWE crowd.

There's no real reason to believe things would be any different this time around, yet this is the main event many are expecting to get (especially since Brock's feud with Braun looks set to play out in the autumn - and ditto Roman's with John Cena).

Repeating a main event would be fine, of course - Stone Cold and The Rock fought twice in the go-home 'Mania bout - but it only makes sense if it was actually a success the first time round.