All Blacks flanker Chris Masoe was fined NZ$3,000 (£1,000) after being found guilty of hitting a man during a scuffle in a Christchurch bar.
The New Zealand Rugby Union fined Masoe after the incident which also involved ex-All Blacks captain Tana Umaga.
Masoe reportedly punched a man in the jaw after tripping over his legs at about 7am on Sunday in Christchurch.
Umaga then grabbed a woman's handbag and hit Masoe twice across the head, at which Masoe allegedly burst into tears.
The two players were out in the city after their Wellington Hurricanes' side lost Saturday's Super 14 final to the Canterbury Crusaders.
The NZRU said it accepted Umaga's word that he was trying to defuse the situation, and found he had no case to answer.
Masoe, who was named in the All Blacks side to face Argentina on 24 June, admitted his role in the incident and apologised on Tuesday.
"I accept that it was totally inappropriate to behave the way I did and regret that it happened," Masoe said in the NZRU statement.
Umaga has replaced a mobile phone which was inside the handbag and broken in the scuffle.
"This was a regrettable incident that everyone would now like to put behind them," Umaga said.