The biggest shock, and the hardest one for WWE to execute, would be The Undertaker going full blown heel at SummerSlam. One rumour right now is that WWE are wanting to make him a bad guy, ahead of a match with Sting at WrestleMania 32. But it would be very difficult to get Taker over as a heel this weekend. He's loved by the fans of the WWE, way more than Lesnar could ever dream of. Granted, he was booed on the go-home Raw (after using another low blow) but that was in Lesnar's hometown. What we could end up with is a Mania 17 style Austin turn, with Undertaker doing a heel finish to get the win, but the crowd still cheering. The biggest shock of all would be if he turned heel and the crowd actually booed him. It is a bold match for WWE to have booked with Lesnar and Taker, and the outcome could be the most shocking of the night.
