Chelsea manager Jose Mourinho has been handed an £8,900 fine and two-match touchline ban at a Uefa disciplinary hearing in Nyon, Switzerland.
The club have also been fined £33,300 and assistant Steve Clarke and security officer Les Miles have been reprimanded for their conduct.
The charges relate to Chelsea's Champions League tie against Barcelona at the Nou Camp on 23 February.
Mourinho claimed he saw Frank Rijkaard speaking to referee Anders Frisk.
Chelsea are not expected to appeal but have until early next week to do so.
The exact details of Mourinho's ban are expected to be clarified on Friday - Chelsea are not yet sure, for example, if he will be allowed to communicate with his coaching staff by mobile phone during the matches.
Chelsea chairman Bruce Buck represented the Blues at the hearing and said they would study the "reasoning of the panel" on Friday before making another decision.
"We are not overly happy with the decision but we respect it," said Buck.
"I think the panel the took view that there was a misunderstanding in the statements we made - but that they were made in good faith and the club and the persons who made those statements continue to believe that.
"In large part the situation has been blown out of proportion but this was a serious matter and we're hoping to put it behind us.
"The whole club respects Anders Frisk's integrity and we are very sorry about the situation that developed.
"If our security people are able to develop any information about those people who have been harassing him, we will turn it over to the authorities."
The Blues had also been charged with the late arrival of their team on to the pitch in the second half and Mourinho for his failure to attend the post-match news conference.
Mourinho will now have to sit in the stand for both Champions League quarter-final legs against Bayern Munich on 6 and 12 April.
The ban means Mourinho will not be allowed to enter Chelsea's dressing-room or the technical area before or during either of the games.
The club complained to the European governing body after the first leg at Barcelona's Nou Camp, when they felt Frisk's refereeing was influenced by Rijkaard.
Shortly after half-time Chelsea forward Didier Drogba was controversially sent off by Frisk, who later retired from officiating after receiving death threats as a result of his involvement in the game.
In announcing the charges on 21 March, Uefa accused Chelsea and their three officials of "making false declarations" in their complaint after the game, but absolved Mourinho of any blame over Frisk's decision to quit.
Mourinho had originally claimed he had personally witnessed the incident but was then quoted as saying he was only told about it by his staff.