Gerrard's six co-defendants earlier pleaded guilty to being involved in the bar brawl on Dec. 29 in a town near the northwestern city of Liverpool, leaving the 29-year-old England midfielder to stand trial on charges related to the fight.
Prosecutor David Turner QC told a Liverpool court 34-year-old Marcus McGee, in charge of music for the night at Southport's Lounge Bar, refused to let Gerrard take control of a CD player, the Press Association reported.
The court was shown security camera footage of Gerrard talking to McGee before one of Gerrard's co-defendants elbowed the businessman.
"Within seconds, Steven Gerrard joined in the attack with a succession of well aimed uppercut punches delivered with the style and speed of a professional boxer rather than a professional footballer," Turner told the court.
"If you consider Steven Gerrard was or even may have been acting in self defence you will acquit," Turner said.
"But we say on this occasion Steven Gerrard's fists, not his feet, did the talking."
