#1 Daniel Bryan
Daniel Bryan and Erick Rowan were the SmackDown Tag Team Champions but they lost the twin belts at Extreme Rules. Though the former WWE Champion was scheduled to make a career-altering announcement, he didn't do it. Meanwhile, he was set to announce it this week but it didn't happen. The announcement never happened and the fans are currently uncertain about his future.
Bryan is a titanic name but he doesn't have a match at SummerSlam. According to a new report, Daniel Bryan could face Roman Reigns at the Biggest Party of the Summer, hence, the former could be the mystery attacker.
Reigns and Bryan crossed paths in the past; when Reigns began his main roster career with The Shield, Bryan faced the Big Dog. Subsequently, they faced off in a few singles matches too. Since Bryan is currently a top heel, the feud could turn out to be exciting. Both men are dexterous in the squared circle and they could steal the show in Toronto.