As you can see in the tweet below WrestleVotes say that WWE saying there is a snag in Brock Lesnar contract negations to defend the WWE Universal Championship is just storyline and the plan is still for him to defend it at SummerSlam. Speculation credited to Bryan Alvarez of F4WOnline is that the Extreme Rules #1 contenders match was cancelled do to Vince McMahon just changing his mind.