Petr Cech
Cech is a Chelsea legend and one of the Premier League’s greatest-ever goalkeepers. But the Czech star overcame one of the toughest moments of his career in 2006. Chelsea played Reading on a sunny day that turned dark very suddenly. The goalkeeper came out to collect a ball but didn’t expect Stephen Hunt to run into him.

Hunt’s shin collided with Cech’s head and almost killed him. It left him with a depressed skull fracture and Cech spent three months on the sidelines. He feared that he would never play again but doctors cleared him if he played with a rugby-style helmet. This gave him a distinctive appearance on the playing field (via All Football).