ANNAPOLIS, Md. -- Navy football player Will McKamey, who was hospitalized after collapsing at practice three days ago, has died while in a coma. He was 19.

The Naval Academy says the freshman running back from Knoxville, Tenn., died Tuesday at the University of Maryland Shock Trauma Center in Baltimore with his family by his side.

"We are all so very heartbroken by the death of Midshipman Will McKamey," Naval Academy superintendent Vice Adm. Mike Miller said in a statement. "This is devastating news for his family, his classmates, his teammates and the entire Naval Academy family. We offer our deepest condolences to Will's family, friends and shipmates in the wake of this tragedy."