Cubs player injured by flying bat
 

http://sports.espn.go.com/chicago/ml...ory?id=5592592

This broken bat flies into Tyler Colvin and pierces his chest causing a pneumothorax. He ends up in the hospital with a chest tube. (The article reports a chest tube to prevent a pneumothorax, but you get them to treat not prevent pneumothoraces.) Anyway, what a freak accident!