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Cubs’ director of medical administration Mark O’Neal talks about what kinds of injuries need ice versus heat, the difference between coming back from aches and pains in hockey and baseball and several injuries that are surfacing as the baseball season progresses.
Chicago Cubs head trainer Mark O’Neal escorts Chicago Cubs second baseman Darwin Barney off the field after he was hit by a pitch to his head during the eighth inning of their game at Wrigley Field, in Chicago, on Tuesday, July 31, 2012. (Nuccio DiNuzzo/ Chicago Tribune)