#1 Daniel Bryan
Speculation is rife that Daniel Bryan will be the man revealed to be the eventual attacker on Roman Reigns. This coincides with a report from Sportskeeda's own Tom Colohue who predicted that Bryan will be back in the main event picture once again, thanks to Eric Bischoff.
It does make sense for this to happen because Bryan has been teasing a massive announcement on SmackDown Live over the past few weeks. What if the announcement finally happens at SummerSlam, where Bryan reveals that it was him behind this massive attack (not the band)?
Bryan and Reigns are both top stars and it would make sense for the two of them to collide at a stage like SummerSlam 2019. They have faced each other in the past and are both solid workers too, making it a compelling clash.
Personally, I would love to see something like this take place.