Danny Cipriani has admitted he "deeply regrets" the late night out which has seen him stood down by his Super 15 club the Melbourne Rebels.
The former England fly-half, in his first season with the Victoria club, will sit out this weekend's match against the Queensland Reds after going out with team-mate Richard Kingi following last Saturday's defeat to the New South Wales Waratahs in Sydney.
"Danny deeply regrets his behaviour and is as disappointed in himself as anyone. These are not the headlines he wants to attract," a statement from his representative Emanuele Palladino said.
"He wants to draw a line under this now and get on with what he does best, which is play rugby."
The decision to sanction Cipriani and Kingi, who was also banned for a single game, was made by the Players Standards Group and was accepted by the duo.
"We have taken this action due to a breach of team protocol," club captain Tim Davidson said. "We are very protective of our standards and we are disappointed that these players have put themselves before the team."
Chief executive officer Ross Oakley added: "Both players defied a team directive to abstain from staying out late on Saturday night, given the six-day break ahead of our next game.
"The club fully supports the decision of our Player Standards Group."
The 23-year-old, who was famously dropped by England ahead of his proposed debut against Scotland in 2008 for being spotted in a nightclub, has already angered Melbourne officials during his brief stay with the club.
On March 1 he was warned he would be stood down if he stepped out of line again after helping himself to alcohol in a nightclub.