College football player Tyler Ulrich dies five days after ‘traumatic injury’ during game

• 21-year-old was treated on field after injury during game

• Coach pays tribute to player's quiet strength'

Southern Nazarene University in Oklahoma announced on Thursday that sophomore safety Tyler Ulrich has died five days after sustaining what the school called a traumatic injury" during a game against Ouachita Baptist. Ulrich was 21.

The Division II school based in Bethany, Oklahoma, did not reveal the cause of death or the nature of Ulrich's injury. Ulrich was hurt during a 49-14 loss on Saturday, with the game delayed for nearly an hour while he received medical attention before being transported to a hospital.