#5 John Cena
John Cena has been one of the biggest names in WWE for a long time, and during his prime, he would show up week after week to compete. While Cena was known as a workhorse in the late 2000s and early 2010s, he was very prone to injuries due to his extensive training routines and schedule.
During a match against Mr. Kennedy on an episode of WWE Monday Night RAW in December 2010, Cena arm-dragged his opponent which led to him tearing his pectoral muscle. Cena was the WWE Champion at the time, and he fought through the pain and completed the match to set an example.
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While he was hopeful that he would be able to defend his WWE Championship against Randy Orton six days later at No Mercy, he was forced to relinquish his title and undergo surgery.
John Cena is one of the toughest WWE Superstars of all time
That’s not all, as The Doctor of Thuganomics showed his toughness once again in a match against Seth Rollins in July 2015. Cena defended his United States Championship against WWE World Heavyweight Champion Seth Rollins on WWE RAW as part of his United States Championship Open Challenge.
A knee to the face from Rollins caught Cena right in the nose, and the WWE Superstar ended up suffering a broken nose. Even though it was evident that Cena was shaken by the injury and was in a bit of pain, he continued the match and took it to its conclusion before heading to the emergency room.