Whether it's football, basketball, hockey, baseball, or soccer, professional sports are a dangerous game. As we've seen over the years with concussions, the effects of a long-term career as an athlete can be far-reaching, forever changing the life of the player who puts his neck out on the line, week in and week out. Naturally, in the course of all these battles, fans have been treated to more than their fair share of gruesome injuries. You know what it looks like.

Think Marcus Lattimore twisting up his knee, or Clint Malarchuk getting his throat cut by a skate. Sometimes, an injury is more than a sprained ankle or a dislocated shoulder. Sometimes, you find yourself watching another guy's career slip away from him in a single moment. And when that happens, unfortunately, you have one of The Scariest Injuries in Sports History on your hands. What other athletes made you cringe when they hit the turf or the hardwood the wrong way? Check out our list, and then let us know your thoughts in the comments section.