Joey Barton was involved in an incident in Liverpool city centre in the early hours of Monday morning.
Barton was on his way home from a night out with his girlfriend when two men sang offensive chants and then proceeded to hit the R's midfielder.
Police were immediately on the scene and arrested one man.
Barton decided not to press charges and left the scene with his girlfriend soon after.
The club will be making no further comment.
More top news
The capital's theatres also generate more searches than those in any other city, according to research by Google.
Union officials are expected to meet next week to plan further stoppages if talks fail to resolve the dispute.
Natalie Sharp and Christine Bicknell appeared in court over an alleged incident at a Lidl superstore in Wallington, south London.