Both patients were transported to Bay of Islands Hospital with moderate injuries, said Mr Ngatai. The patients have since been released.
Moerewa Club chairman Paul Owen was "brassed off" that the incident had detracted from an excellent finals day and after match celebrations, but said it in no way reflected on the club or its members.
"It was just one of those things, a domestic incident that got out of hand. Nobody knew he had a knife until it was too late," Mr Owen said.
"It has detracted from what was a really good day, and put Moerewa in a bad light."It was an isolated incident... One idiot took it a bit far."
One man was stabbed above the eye and had to have stitches in hospital before being released while one man had cuts to the hand and another to the arm after they are understood to have stepped in to break up a fight.
Earlier it was reported that five people had been stabbed, this is incorrect.
-with additional reporting from Nikki Papatsoumas of APNZ
