Twenty people have been arrested and two hospitalised as some of the high-spirited celebrations turned sour after the Tonga-Australia rugby league test in Auckland on Saturday night.
A large brawl and "pockets of disorder" kept South Auckland police busy after the test at Mt Smart Stadium, won by Australia 34-16.
A police spokeswoman said there were 20 arrests made throughout the night and two people were taken to hospital with serious injuries after a large brawl on Nikau Rd which erupted towards the end of the test.
League fans had turned up in droves to watch the match - the first time the two sides had clashed in a rugby league test.