UEFA has opened disciplinary proceedings against Porto coach Julen Lopetegui after he was sent to the stands during his side's Champions League defeat to Bayern Munich.
The 48-year-old was dismissed by referee Martin Atkinson for arguing with the officials at the Allianz Arena.
Porto suffered a 6-1 hammering last night as they exited the competition at the quarter-final stage.
The case is due to be heard at a disciplinary hearing on May 21.