In the world of mixed martial arts, injuries are a common occurrence.
2011 was a rough year for the UFC as several of their main events were cancelled or altered because of injuries.
The third fight between Frankie Edgar and Gray Maynard, the title fight between Mauricio “Shogun” Rua and Rashad Evans, and Jon Fitch and BJ Penn‘s rematch are just a few examples of fights that were cancelled due to injuries this year.
The latest fighters to be hit with the injury bug are heavyweight contender Shane Carwin and welterweight champion Georges St-Pierre.
Carwin is now faced with his second surgery in as many years and will be sidelined until the middle of next year, while GSP suffered an apparent leg injury just a couple weeks before his title fight with Carlos Condit.
Carwin joins a select few fighters who have had to deal with injury setbacks on more than one occasion.
Some of these fighters have been out of the octagon for years and it remains unclear on whether fight fans will ever see them again.
Here are just a few examples of fighters who have the most trouble when it comes to remaining healthy.