Police are appealing for information about an assault that took place in Norton between 10.15am and 10.40am on Saturday.
The victim was driving a lorry along the A1088 when a silver Vauxhall Vectra, which had tried to over-take numerous times, eventually did and slammed on its breaks causing the lorry to stop.
Both men got out of their vehicles and the lorry driver was punched several times in his face.
The driver of the Vauxhall Vectra is described as a white man, 5ft 9ins tall, 35-40 years old, muscular, clean shaven, with short dark blonde hair.
He was wearing jeans and a plain grey T-shirt with a dark grey scarf.
Calls in relation to this incident should be made to Pc Daniel Smyth by calling 101 or Crimestoppers, anonymously, on 0800 555 111.