SIOUX CITY, Iowa (AP) – A Sergeant Bluff man has been given 60 days in jail for head-butting his 13-year-old son. Forty-eight-year-old Bradley Graff also was ordered Tuesday to pay $410 in restitution. The Sioux City Journal reports that Graff pleaded guilty to child endangerment. He pleaded guilty in a separate case to failing to register as a sex offender. He was given a suspended five-year sentence and two years’ probation.

Court documents say the head-butting occurred while Graff was practicing wrestling with his 11- and 13-year-old sons at his business, Wall of Fame. The documents say the older boy asked to stop practicing, but Graff threw him onto a mat several times and head-butted him. The documents also say Graff stomped his son’s head onto the mat, giving the boy a bloody nose.