https://www.youtube.com/watch?v=mUx4mFjOkQE
John Cena
John Cena had suffered some serious concussions in different parts around his body. He is superhuman and hence able to make his comeback every time earlier than expected. In the year 2007, Cena was the WWE championship holder and torn his pectoral muscle against Mr. Kennedy. He had to relinquish the title. Even, in the year 2013 during Summerslam, he lost to Daniel Bryan. He has a bruised elbow back then which was the original cause of coming up short.