Gold Coast Titans forward Kevin Proctor has been suspended for four matches by the club.
Proctor has also been fined $20,000 and been instructed to undertake 50 hours of community service as part of a drug and alcohol prevention program after an incident following Friday's Australia v New Zealand Test match in Canberra.
"The Board has taken a strong stance with Kevin despite his four-match suspension potentially damaging the club's prospects over the coming month as we seek to remain in finals contention," Titans CEO Graham Annesley said.
"He has also let his teammates down, and seriously disappointed our members and commercial partners.
"Of course, as a football club our priority is to win as many games as possible, but if we all have to suffer some pain in order to drive the message home, then so be it.
"We take our responsibility to the community seriously and we will not walk away from tough decisions just to increase our chances of on-field success."