Carl Ekern, the Rams' player representative to the NFL Players' Assn., said he has advised his teammates not to submit to post-season drug testing, should the club request it.
Some members of the St. Louis Cardinals and New Orleans Saints already have been fined up to $1,000 each for refusing.
"Everything that I've been getting from the union and passing out to the players says that we, as players, should not allow management to do a urinalysis in the post-season physical," Ekern said. "I'm sure that's what the people in St. Louis were acting on. My understanding at this point is that the union is going to file a grievance.
"It's not clear in the Collective Bargaining Agreement (of 1982). Because it's not clear, the union is saying they can't and management is saying they can. They need to have something like that come up so they can get it cleared up (by going through) the grievance procedure.