Cologne have confirmed that they will discipline Arsenal target Lukas Podolski after the German striker was critical of his employers in a newspaper article.
Podolski spoke to German publication Bild am Sonntag and complained that Colgone have failed to deliver the promises made when he resigned for his home-town club from Bayern Munich in 2009.
The club's general manager Claus Horstmann says Podolski will have to be made an example out of, regardless of his high status in the team.
"We have decided as a club not to tolerate this kind of interview but rather to sanction them," Horstmann told Sky television.
"We will certainly make use of the freedoms we have in his contract of employment to clear things up and make it clear to everybody that even Lukas Podolski must respect the rules.
"It is not the first time that such a situation has arisen. We have got to make it clear what rights and duties the players have and that Lukas must respect them - they apply to every player."
Podolski has been in fine form this season, and has found the net on 16 occasions in 20 appearances for both club and country.
His goalscoring exploits have led to frequent links with a move to Arsenal, and Arsene Wenger was reported to have been keen to bring the 26-year-old to the Emirates Stadium during the January transfer window.
However, a move never transpired, but Wenger could move for Podolski in the summer as doubts remain over the future of Robin van Persie in north London.
The Arsenal captain will enter the final year of his contract at the end of the season, and has yet to commit himself to the club.