WWE SummerSlam 2018: Five potential endings for Brock Lesnar Vs Roman Reigns 

#2 Roman Reigns.... A Paul Heyman Guy

Could Roman Reigns do a deal with the devil to become Universal champion?

This option doesn't seem too likely, largely because Paul Heyman himself has teased it.

On an 'unaired interview' following last week's Raw, Heyman said that Reigns didn't stand a chance at SummerSlam before saying 'unless' and taking his own mic off, the implication being that Heyman knows a way that Reigns can overcome Lesnar.

Heyman has turned on Lesnar in the past, screwing him at Survivor Series 2002 and siding with The Big Show, which does mean that this is a possibility.

Reigns has been in desperate need of someone to talk on his behalf, and Heyman would be the perfect candidate. It would also mean that Reigns finally turns heel, which would give the fans exactly what they have wanted for the last few years.

The fact that this is such a great option is precisely why the WWE probably won't pull the trigger on it.