Whenever you talk about the prospects for a team or a player during the upcoming season, the discussion always starts with two words:
Nothing can derail a season and demoralize a player more than an injury, and usually injuries happen during the heat of competition.
A basketball player lands on a guy's foot and twists his ankle. A baseball player gets hit with a pitch and breaks his hand. A football or hockey player gets laid out and gets a concussion.
Those injuries we can deal with. What we can't deal with is when a player gets injured doing something stupid.
Luckily for us, there are plenty of instances of boneheaded injuries in the sports world. Here are the top 50.