The Blackhawks say goaltender Corey Crawford suffered a concussion when he hit his head on a goalpost during a collision with two other players in Sunday's loss to the Sharks.
The NFL has demanded that the New York Times retract a story saying the league omitted concussion cases, according to a report.
Milwaukee Brewers outfielder Rymer Liriano was hit in the face by a pitch Sunday, and there was blood around his nose when he was carried off the field on a backboard.
Giants right-hander Johnny Cueto pitched three innings after taking a line drive to his forehead, but he later returned to Scottsdale to be evaluated by team doctors.
Johnny Manziel was "hung over" at a Cleveland Browns meeting, a source told ESPN, but the team says the quarterback had been diagnosed with a concussion.
Dr. Bennet Omalu of "Concussion" fame said earlier this week he "would bet my medical license" that O.J. Simpson is suffering from the degenerative brain disease CTE