#3 Jamal Crawford
Back in 2003, Jamal Crawford, a Bulls player was guarding Fred Hoiberg of the Minnesota Timberwolves at the three-point line. Hoiberg pump faked and Crawford ended up jumping on the opponent's body, landing on his upper back with his legs above his head.
He winced in pain and was left immobile on the court. Play was stopped for 10 minutes as Crawford was carried off the court on a stretcher with a brace on his neck. It is one of the nastiest looking injuries in the history of the game.
Though the injury looked life-threatening, it was just a sprain and he was out of the hospital the next day. Interestingly, Jamal Crawford is currently playing for the Minnesota Timberwolves.