Borussia Dortmund manager Jurgen Klopp has been handed a one match ban by UEFA following Dortmund's 2-1 defeat at Napoli on 18 September.
Klopp was sent to the stands following an incident in which defender Neven Subotic was not allowed onto the field of play. The Dortmund coach was seen to verbally abuse the fourth official, and after apologised for his behaviour:
"I made myself look like a monkey out there and that's not on," he told ZDF television.
"I overstepped the mark and it was really pathetic of me.
"I've already apologised to the team, the referee and the fourth official. I got it wrong. I have to accept the blame for this red card, it was just stupid of me."
Dortmund lost Goalkeeper Roman Weidenfeller to a red card, as well as key defender Mats Hummels to injury against the table-topping Italians, and will have to make do without Jurgen Klopp from the sidelines in their upcoming Champions League fixture against Olympique Marseille.
A UEFA disciplinary committee will meet on 2 October to decide whether he will be suspended for a further match, or receive a fine.
After leading Dortmund to a Bundesliga and DFB-Pokal double in 2012 and the Champions League final last season, Klopp is regarded as one of the best managers in Europe - although his temperament has landed him in trouble more than once.
Dortmund host Marseille on October 1st with Klopp being forced to watch from the stands. If the disciplinary committee decide he will receive a further ban, he will miss Dortmund's next European game against Arsenal in London.