Schalke striker Kevin Kuranyi has been fined for his behaviour during the Royal Blues' cup loss at Cologne.
The German international was substituted by coach Mirko Slomka after a poor first-half showing and promptly spent the rest of the match in the Schalke dressing room.
"We have clear rules that every player who has been substituted has to take his place on the bench," commented Slomka.
"I have spoken to Kevin about his behaviour and he will be receiving a fine."
Kuranyi, who has been struggling for form for most of 2006, refused to comment on his punishment.
"I can understand him not wanting to speak to the media about it. He probably needs a day or two to think about what has happened," Slomka added.
Schalke general manager Andreas Muller has hinted that the club's management team is losing patience with Kuranyi.
"Kevin has to do more on the pitch. He must show us that he's willing to go to any lengths to battle his way out of his current form crisis," he told Kicker.
Meanwhile, Schalke will be without influential midfield playmaker Lincoln for Sunday's Bundesliga clash with Stuttgart.
The Brazilian suffered torn ligaments in a Schalke training session on Thursday and will now be out of action for two weeks.
The news comes as a further blow to Schalke boss Slomka, who could also be without defensive duo Levan Kobiashvili and Dario Rodriguez for the game.
Both players picked up injuries during the clash at Cologne and are struggling to recover fitness in time to face Stuttgart.
"We are working around the clock to get both fit, but at the moment it looks like we'll need a small medical miracle for that to happen," Schalke team doctor Thorsten Rarreck told the club's official website.