In brief: Several hours after being hit by a lacrosse stick in the left temporoparietal area slightly anterior to the ear, a lacrosse player was found unresponsive and wrapped in a blanket in his dormitory room. He had not lost consciousness during the game, sat out only five minutes, and completed the game. His Glasgow Coma Scale score was 12 of a possible 15. A CT scan showed an epidural hematoma and a skull fracture. He underwent an immediate left temporoparietal craniotomy and evacuation of the epidural hematoma. He recovered fully and requested permission to return to play six months after the injury. The authors think that an improved lacrosse helmet design would help prevent this type of injury.