According to several trustworthy sources, the mainevent of this year’s SummerSlam has been leaked by some closer employees and obviously will involve Brock Lesnar defending his Universal Championship. Lesnar will defend the title at SummerSlam as the longest reigning world champion (beating CM Punk’s 434 day reign)
According to the same reports, the current Universal Champion Brock Lesnar is expected to put his title on the line against his arch-nemesis Roman Reigns and is also heavily rumored to lose the match in-turn passing the torch to Roman Reigns.
The sources backed the report by explaining how Lesnar vs. Reigns at the Greatest Royal Rumble pay-per-view ended (controversy with both of them hitting the ground at the same time). So WWE might be using this as an excuse to set up Lesnar vs. Reigns Part 3 for this year.
If these reports are to be believed, then we can expect Roman Reigns to slay The Beast at SummerSlam and become the Universal Champion for the first time in his career.