Daniel Cain, aged 28, of Langsett Road North, was sentenced after being found guilty of grievous bodily harm following a trial Sheffield Crown Court.
Jurors heard how he was a passenger in a car which was speeding along Owlerton Green in Sheffield last February when a passer-by called for the vehicle to slow down.
Cain responded by getting out of the car and punching the man in the face – breaking his jaw.
South Yorkshire Police described the incident as a ‘vicious assault’.COURT: Women jailed for ‘deplorable’ attack on man during a party at his Sheffield home He was recognised by his victim and a witness at the scene. DC Matt Welsh, of South Yorkshire Police, said: "This incident has had a profound effect on the victim. They are still receiving treatment for their injuries a year on.
“If that was not distressing enough, Cain could not even take responsibility for his actions and put his victim through a trial. “I am satisfied with the result and I would like to commend the victim for their bravery following what was a horrible and violent attack.”