The Professional Rugby Players' Association (PRA) has voiced concern over the situation surrounding the resignation of three Bath players.
England flanker Michael Lipman and his Bath team-mates Alex Crockett and Andrew Higgins resigned on Monday, immediately before they were due to attend an internal disciplinary hearing.
Bath had been conducting an investigation into allegations linked to drug use and fighting at an end-of-season celebration in London on May 10.
The PRA is in contact with all parties - while the Rugby Football Union has also launched an investigation - and is uneasy at the way the case has developed.
A statement read: "The PRA is extremely concerned about the very serious allegations made publicly against three Bath players and the conflicting statements made by the club and the players regarding their recent conduct.
"The PRA is maintaining close channels of communication with the players, their legal representatives and the club.
"We look forward to a speedy conclusion to the RFU's additional investigation into this matter."
The PRA also reminded its members they have a duty to the game and must conduct themselves in an acceptable fashion.
The statement added: "The PRA actively encourages and expects our members to maintain the highest standards both on and off the pitch, preserving the unique values and ethos of rugby union.
"Professional rugby players are role models for the game - their conduct and the way they are managed must reflect this in all respects."