10 Reasons WWE Champion John Cena Must Lose To Brock Lesnar At SummerSlam

9. Lesnar's Momentum After Ending "The Streak"

It has now been four months since WrestleMania 30, and people still haven't quite gotten over the fact that The Undertaker's undefeated streak is over, and with it, his career is probably over, as well. It was something that most fans thought would live forever, whether it deserved to or not. In those four months, the mystique of Brock Lesnar has grown to epic proportions. He was able to do something that WWE Hall Of Famer after WWE Hall Of Famer was unable to do, and his buzz continues to grow. Now, imagine him participating in his very next match... and losing. What does that do for him? What does that do for The Undertaker? It makes Cena appear leagues ahead of Taker in the eyes of many fans, which isn't something the company should be doing, no matter their love affair for the current champion. You can't take Brock from ending Taker's streak to losing another match to Cena in the span of one match. You just can't. That could end up hurting Brock to the point where he can't recover from it. While we're on that subject...