Saturday Night's Main Event is back on Dec. 13, but it is no ordinary edition as it is headlined by the final match for John Cena. The 17-time WWE Champion will cap his historic career against Gunther, putting a dominant force in the ring for his final bout.

John Cena has been known to give back to others and notably holds the Guinness World Record for granting the most wishes through the Make-A-Wish Foundation. But his generosity also extends to pro wrestling, and according to Natalya, he gave a "master class" at the Hart Dungeon not too long ago.

A John Cena tribute video featured a jab thrown at the WWE star, the New England Patriots, and legendary quarterback Tom Brady.

John Cena has accomplished plenty in his career with most accolades well known to the common fan. One thing he hasn't done, however, shocked even WWE medical.

Speaking to Pat McAfee, Cena reflected on his final year.