3. Revenge On Seth Rollins
One angle that may be in the works is The Undertaker coming after Seth Rollins. This would stem from Rollins injuring Taker's brother Kane on Raw. The goal could be to build to a match of Taker and Kane versus Rollins and J & J at SummerSlam. Or maybe they even just do Rollins vs Undertaker as a straight singles match, which would certainly be an awesome thriller. The angle at Battleground would be both Rollins and Lesnar in the ring after the end of their match. They'd both be down on the mat after an hellacious war in which Lesnar won the title. Then Taker's music hits and the lights go dark. When they come back on, he's in the ring. The commentators then tease, "Who's he going to attack? Lesnar took his streak, but Rollins injured his brother!" As Rollins and Lesnar rise to their feet, Taker teases hitting Lesnar, but instead turns and destroys Rollins, thus establishing a match for SummerSlam.