#4 It would be Lesnar’s second loss against Rollins in the same year
Brock Lesnar is one of the most protected guys in WWE and he rarely loses his matches. His last two losses (one against Roman Reigns and the second against Rollins) did not harm his character as he didn't lose clean in either one of them. It proves that Vince McMahon takes care of Lesnar and how his matches end.
In the chairman’s mind, getting a single clean victory against Lesnar is (seemingly) a crime, and thus, he finds other ways to end his matches. Lesnar has already lost once to Rollins this year and it's unlikely that he would lose again at SummerSlam. Last week, we saw a different Brock Lesnar and it would destroy his momentum if Rollins beats him.
Also read: Hulk Hogan on almost using "Triple H" as his ring name, real-life issues with The Ultimate Warrior
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