KNOXVILLE, Tenn. — A referee in a youth football game has been charged with aggravated assault after witnesses say he pulled out a pocket knife during an argument with a coach.

Police say Arnold Jay Davis was arrested after working a Saturday afternoon game in Knoxville, Tennessee.

According to a court affidavit, Davis had declared the game a forfeit and ejected Antonio Hamilton for “causing a disturbance.” Hamilton argued with Davis as the teams left the field.