Bayonne scrum-half Mike Phillips is reportedly facing disciplinary action from the French club following allegations that he was drunk while attending a video analysis session.
The incident is believed to have taken place on October 11 after the team's victory over Grenoble in the Amlin Challenge Cup.
The Welsh international's teammates Dwayne Haare and Stephen Brett are also alleged to have been under the influence of alcohol, according to Sky Sports News.
Bayonne deputy chairman Philippe Rugierri is expected to hold talks with the trio on Tuesday.