1. Seth Rollins vs Brock Lesnar vs Dean Ambrose
Brock is returning on Raw, and he'll have his sights placed firmly on the WWE World Heavyweight title. However, despite The Beast being allegedly all booked-in for a match at Battleground, Rollins vs Lesnar feels like more of a Summerslam headliner. So why not add Dean Ambrose into the proceedings? The Lunatic Fringe came with a hair's breadth of walking out of Money In The Bank with the championship. The belt was in his hands as both he and Rollins fell from the ladder. Ambrose can use this as a reason to insert himself into the title picture. It's not like the fans will complain; triple threats featuring Rollins and Lesnar have a tendency to be classics, after all. Also, considering that Lesnar should still be riding the momentum from beating The Streak, he shouldn't be be eating a pinfall at anything other than a "Big Four" show, and Ambrose being around gives Rollins someone to pin in order to retain his title for Summerslam.