Over the summer of 2013, Cena dropped the WWE Championship clean to Daniel Bryan. That could qualify as a WTF on its own, given the magnitude Cena's rare clean losses. But the big WTF was what was going on with Cena's elbow at the time. It was disgusting, quite visibly being the size of a baseball. It turned out he'd suffered a triceps tear, and being the tough guy that he is, he'd just worked through it. But now his elbow was just full of liquid and swelling. Another WTF with this, is how quick he recovered. He was scheduled to be out four to six months, but with his "mutant" powers of recovery, he ended up back in just a month and a bit.