Sean Peter Guthrie, father of Shrewsbury-born Reading midfielder Danny Guthrie, was found guilty of assault and making threats after a trial at Telford Magistrates Court.
The 46-year-old from Donnington, Telford, left driver Wayne Dodden with blood pouring from his face after the violent outburst in Wellington, Telford, the court heard yesterday.
Guthrie, of Barn Close, who wore grey tracksuit bottoms and a Mike Tyson hoodie to his sentencing, was ordered to complete an anger management course and pay Mr Dodden £1,000 in compensation.
But the tattooed Audi Q7 driver, whose son was sold by Bolton Wanderers to Newcastle United for £2.5 million in 2008, said his only income was £71.70 a week in benefits and could only pay the injured man £5 per week. Magistrates were told an incident occurred in King Street, Apley Avenue and Grainger Drive and as Mr Dodden turned off the Apley roundabout, Guthrie drove right up to his bumper sounding his horn.
He then pulled over and accused Mr Dodden of making obscene gestures at him before lunging at him, cracking the bridge of his nose.
Prosecuting, Sara Beddow said: "In his wing mirror, Mr Dodden could see Mr Guthrie had stopped his car, got out and was approaching his car. He put his head out of the window and asked what on earth was wrong.
"Mr Dodden got out of the vehicle to try to diffuse the situation but Mr Guthrie shouted aggressively. He walked right up and headbutted him on the bridge of his nose.
"This was done with such force Mr Dodden heard the crack of a bone and his glasses came off. He retrieved his glasses from the ground and felt blood running down his face."
Mr Dodden went to hospital and medical statements confirmed he had a broken nose.
Guthrie was handed a 12-month community order in which he must complete six hours of anger management sessions.
The attack of January 29, 2013 was not the first time he had come to the attention of the police. Officers were called out to reports of a brawl at his son's £40,000 wedding in 2012.
It was alleged Guthrie was involved in the fracas, in which the bride was reportedly punched in the face.
Staff at Allerton Castle, near Knaresborough, North Yorkshire, reportedly called police three times over fighting and damage.
Danny Guthrie, who was born in Shrewsbury, and went to Thomas Telford School played for England under-16s.