STEPHENVILLE, Texas — A redshirt freshman football player at Tarleton State has died after sustaining a head injury during spring practice.

Tarleton spokeswoman Liza (LYE'-zah) Benedict says 18-year-old Zach Shaver died at a Fort Worth hospital Monday, two days after he was injured at the Division II school in Stephenville.

Benedict says Shaver, a defensive lineman from Wichita Falls, was being blocked by an offensive lineman when both players went to the ground. Shaver started to get up but collapsed and was later airlifted to the hospital.

Benedict says a cause of death hasn't been determined.

Stephenville is about 80 miles southwest of Fort Worth.