Wigan Warriors say a player may face disciplinary action over his role in a town centre incident.
Club bosses are investigating reports and claims of fighting outside a gym on Friday.
Xercise4Less, on Chapel Street, confirmed trouble broke out but refused to elaborate.
Earlier in the day several Wigan players posted pictures on social media of them at Haydock Races.
They beat Castleford 33-26 on Thursday night to keep the pressure on at the top of the Super League ladder.