John Cena is currently nursing a storyline injury to his shoulder after a grueling match against Brock Lesnar, followed by an attack by John Laurinaitis the following night.
Triple H is ailing from a similar storyline injury after being attacked by Brock Lesnar on RAW, and went as far as to wear a sling on his injured arm while escorting Floyd Mayweather to the ring last Saturday.
In order to sell his particular injury, Cena has also donned a sling, and did not compete last week on RAW.
As the consummate babyface, Cena will continue to valiantly battle despite his injury, showing the true grit and toughness of a hero.
However the storyline injury often affords mostly heel talents with a new creative avenue to pour on the effects of an injury while cheaply using the protective device in question to their advantage.