#4 Helping Samoa Joe defeat Roman Reigns at Backlash
Roman Reigns has a chance to compete for the Universal Championship at the Greatest Royal Rumble pay-per-view. And this comes shortly after he lost a match against Brock Lesnar at WrestleMania 34. Mind you, Finn Balor and Kevin Owens haven't received title shots since they lost the Universal Championship.
Could the favouritism shown by WWE management be the straw that breaks the camel's back for Dean Ambrose (in storyline of course)? It is a well documented fact that Ambrose works more dates than any other performer in the roster. This could be the reason he shows up at Backlash and prevents Reigns from defeating Samoa Joe.
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This could lead to a long drawn out feud between Reigns and Ambrose. Yes, they have faced one another in the past, but they've never really had a full-fledged emotional program thus far. We know it was Joe that attacked him, but this swerve could make things very interesting.