ANNAPOLIS, Maryland (AP) — United States Naval Academy college football player Will McKamey, who was been hospitalized since collapsing at practice three days ago, has died while in a coma. He was 19.

The academy says the running back died at the University of Maryland Shock Trauma Center in Baltimore on Tuesday with his family by his side.

He collapsed during spring practice Saturday and was airlifted to the hospital.

Earlier this week, McKamey's family said in a statement released through the school that their son did not sustain "a bad hit or unusual or extreme contact."

McKamey was hospitalized in 2012 with a brain injury but was cleared to play after seeing four neurosurgeons and undergoing several CAT scans and MRIs, his family said.

He did not play in a game last season.