Mr McGee, 34, lost a tooth and suffered cuts and bruises when he was allegedly set upon by the footballer and his friends after refusing to play Gerrard's favourite song while acting as a DJ in a bar in Southport, Merseyside.
Witnesses of the alleged attack said Mr McGee, a Manchester United fan, was in charge of a card which allowed the music to be changed.
They claimed Gerrard asked for a particular tune but was told that it was not club policy to play requests.
At that point the footballer allegedly pushed past Mr McGee, catching him with an elbow.
One witness told The Sun: “Marcus pushed Gerrard in the chest and, almost instinctively, Gerrard hit back with his elbow in Marcus’s mouth.
“Gerrard stepped back and walked away but his mates piled on top of Marcus and one of them smashed a beer bottle over his head. The whole thing lasted less than 10 seconds.
“Gerrard was pulled out of the scrapping and it turned into a free-for-all. The doormen all ran in and the club seemed to empty in seconds. We didn’t see who went where.
'People were rushing to Marcus’s side. He had a light-coloured shirt on and it
was stained with blood.”
A police source said: 'Mr McGee retaliated and swore at Gerrard, which was when Gerrard's mates turned violent and assaulted him.'
Friends of the England star insisted he had been reacting to provocation and had thrown no punches himself.
Mr McGee, a father of two who runs a double glazing firm, was taken to hospital where he received four stitches to his forehead and treatment on a cut nose, swollen eye and a dislodged tooth.
