Worcester players Chris Cracknell and James Collins have been charged by the Rugby Football Union with conduct prejudicial to the interests of the game.
The two players allegedly became involved in a fracas with spectators at Headingley after Worcester's defeat to Leeds confirmed their relegation from the Guinness Premiership.
The club have conducted their own investigation into the incident and found both players guilty of the same misconduct charge.
Collins was found guilty of verbal abuse of a spectator and Cracknell of physically abusing a spectator.
Cracknell, an England Sevens international, has been suspended for two weeks, fined and given a final written warning about his future conduct which will remain on his personal file for 12 months.
Collins, who is a product of the Worcester academy, has been fined and given a written warning about his future conduct.