Police are investigating allegations that a group of league players played a part in throwing a bottle into a window that shattered and caused injury to a woman.
However, the team of those accused - the Point Chevalier Pirates - says the allegations are baseless and "underhand tactics" from their opponents - the Mt Albert Lions - ahead of the grade final today.
Pirates chairman Glenn Poole said his players had left the party when the incident allegedly took place last month.
He said the allegations were coming from within the Mt Albert Lions club and their supporters - who they were due to face off against in the Fox Memorial Cup final match.
An Auckland City police spokeswoman confirmed that officers were "investigating an incident at a party in Auckland". She could not give any further detail.