Following a collision late in the third quarter, Gales did not move as he was left on his back on the field. Medical personnel from each school rushed to his side.
Gales received assistance for several minutes before he was placed on a backboard and stretcher and carted off.
Southern said in a statement that Gales, a third-year sophomore from Baton Rouge, Louisiana, will remain at Athens Regional hospital until further notice. He has one catch for 24 yards this season.
AP college football website: collegefootball.ap.org