Celtic manager Neil Lennon has revealed his anger over comments made by defender Victor Wanyama over a move away from the club.
The 21-year-old was quoted by reporters while on international duty with Kenya as saying that he would like to play football in the Premier League.
Lennon has now berated Wanyama for disobeying club rules.
"The rules are made clear before the lads go away. At any time of the year players should not be talking about club business when they are away with their international teams," he told the Sunday Mail.
"That goes for a few of the others and I am not just singling out Victor on this but he knows the club policy. It is difficult sometimes when they get asked questions but they should just bat them off really. Victor is due back on July 11 and will meet us on tour in Germany.
"It does not surprise me that there is interest in Victor as he had an incredible season. We think he is a great player but I'm just not happy about the way things have been dealt with. As far as we are concerned Victor is not going anywhere as he signed a long-term contract."
Wanyama joined the Scottish Premier League champions from Belgian club Beerschot AC in July 2011.