Celtic have yet to offer midfielder Victor Wanyama, who has been linked with a move to the Premier League, a new contract, his business manager has said.
The Scottish champions are keen to agree a new deal with the Kenyan, who has impressed since moving to Parkhead from Belgian club Beerschot last year.
Wanyama, 29, has three years remaining on his contract and business manager Rob Moore said his client had neither received an offer nor saw the need to extend the deal at this point.
"We can confirm that although Celtic have intimated that they wish to offer him a new deal, we have not had any offer to improve Victor's contract," Moore told Sky Sports.
"Obviously given his progress and his standing within Scottish football, we would expect that to be recognised."
He said Wanyama had established himself as "one of the best young midfielders in Europe" and added that an improved deal would "be about recognising his progress, off a low base, and then rewarding him accordingly".
He concluded: "I believe that Celtic would look for a substantial transfer fee for him therefore it would only be right that they follow that up with improving his current deal accordingly."