The Undertaker versus Brock Lesnar at SummerSlam is already one of the most talked about WWE matches of the decade. Fans are fascinated to see these two giants of the industry collide, with a lot of the fascination coming over just how exactly WWE are going to book the finish. One the one hand, you have the mega hot babyface in Brock Lesnar. His reactions were at Austin levels after WrestleMania 31. On the other, you have The Undertaker. He's the most respected veteran in the business, he is the closest thing to a god in the WWE. Which is why the creative has been unusual. Is The Undertaker a heel? Is Brock Lesnar really going to lose when he's at the hottest he's ever been? Questions are swirling, and the likely answer is that this Sunday isn't going to be straight forward. This could just be the start of a much bigger story. With rumours of big returns and shock twists, in addition to reports of future directions, this list will take a look at the ten possible outcomes for The Undertaker versus Brock Lesnar at SummerSlam. It is going to be a very intriguing night this Sunday, and WWE will be closing the show with The Beast, The Deadman, and possibly a big surprise.