The victim, who is in his 50s, was watching Spanish football at the Prince of Wales pub in Gatley at about 11.20pm on Saturday 27 March 2010, when he began chatting with a group of four men and two women.

The group began mocking the victim and one of the offenders approached him and put something, believed to be hair gel, in his hair.

The victim responded by pouring a pint over the offender’s head, prompting him to head butt the victim. A second man who was in the group then smashed a pint glass into the victim’s face.

The group left and the victim went to hospital for treatment to facial injuries.

It is believed the offenders are from either the Benchill or Wythenshawe area.

Detective Constable Julian Scarsbrook, of Stockport CID, said: ” The victim had spent the evening enjoying himself in the pub when the group thought it acceptable to taunt and assault him.

“There was no reason whatsoever for them to do so and their actions are that of mindless idiots.

“If anyone was in the pub and saw what happened or knows who is responsible I would urge them to get in touch.”

Anyone with information is asked to call Stockport CID on 0161 856 9845, or the independent charity Crimestoppers, anonymously, on 0800 555 111.