Ahead of the John Cena WWE farewell tour, the 16-time world champion reflected on his past. In his prime, Cena rarely lost. Now, the tides have turned.

Rumors swirled recently that John Cena may challenge Cody Rhodes for the Undisputed WWE Championship, though it depends on whether Dwayne "The Rock" Johnson has a match. Unfortunately, The Rock's latest WWE appearance gave little to indicate if he'll be at the big event, so we're left to speculate on the plan for Cena.