Montpellier manager Rene Girard has been given a two-match touchline ban and a €5,000 fine after being found guilty of improper conduct by UEFA.
European football's governing body decided to take action after Girard had raised his middle finger at the opposition bench when a row took place during his side's 2-2 Champions League draw with Schalke last week.
The ban means the Frenchman will miss the Champions League home game with Olympiakos on October 24, while the second match is suspended for three years.
Montpellier have also been fined for the behaviour of their fans and players during the match.
A UEFA statement said: "Montpellier have also been fined €17,000 for the throwing of missiles and fireworks by their fans, and for the improper conduct of the team [receiving five cards or more].
"An appeal may be lodged against the decision within three days of receipt of the written grounds for the decision.''
Girard said of Schalke coach Huub Stevens after last week's match: "He obviously thought it was okay to wave at us and make gestures."