John Cena has played a major role in professional wrestling for over 20 years. He has been part of WWE for a long time, and his matches at WrestleMania show how much he has achieved in his career.

John Cena defended the United States championship against Rusev at WrestleMania 31. Photo by Jed Jacobsohn /Sports Illustrated via Getty Images 7. WrestleMania 31: John Cena vs. Rusev (c ...