In “I Have Till 5” 3MBooth will Pick A Topic and Discuss the 5 Finer Points Of It.This Sunday at Extreme Rules, John Cena faces The Ryback in a Last Man Standing Match for the WWE Championship. According to the WWE, John Cena has never lost at Extreme Rules. This also means, Cena is the unofficial “Mr. Extreme Rules (Mr. Wrestlemania and Mr. Summerslam are taken.) It’s hard to believe that the squeaky clean Fruity Pebbles Sponsor is capable of anything remotely extreme, but he has his moments.. Here are five instances where John Cena has actually taken it to the Extreme.