Arsene Wenger and Samir Nasri have both been banned for one match by UEFA for remarks made to the referee after Arsenal's Champions League last 16 defeat by Barcelona.
Tottenham first team coach Joe Jordan has also been handed a one-match suspension for incidents that took place at Spurs' last 16 first leg match at AC Milan. Jordan clashed with Gennaro Gattuso, who was later given a four-match ban for head-butting him.
UEFA said in a statement: "Arsenal manager Arsene Wenger and midfield player Samir Nasri have both been suspended for one UEFA club competition match following charges of improper conduct.
"The Arsenal manager has also been fined 10,000 euros.
"An appeal may be lodged against the ruling within three days of the dispatch of the reasoned decision.
"The control and disciplinary body has also imposed a one-match ban on the Tottenham Hotspur assistant manager Joe Jordan following incidents that took place at the UEFA Champions League round of 16 first leg against AC Milan in Italy on February 15.
"In Jordan's case, the punishment applies to Tottenham's next game in the competition - the English club's quarter-final first leg on 5/6 April. As with the Arsenal decisions, an appeal can be made."
UEFA's bans for managers and coaches are tougher than the FA's. Before and during the match, Wenger and Jordan will not be allowed to go in their team's dressing-room, the tunnel, or the technical zone, or on the pitch. They will also not be allowed to communicate with his team.
Wenger, speaking this afternoon before UEFA's announcement, insisted he had done nothing wrong.
The Arsenal manager said: "If I am punished it will be one of the very few times that I feel I don't deserve it, because I don't feel I did anything wrong.
"I have no chance to speak my mind and I will have to accept it, but frankly I don't feel wrong and you don't feel at ease if you know you have done something wrong.
"This time I am quite relaxed, I don't even listen to what they have to say because I know what I've done and what I have said. I don't feel in this story I will have to be the one to be punished."