Celtic's Brendan Rodgers maintains that goalkeeper Craig Gordon will not be sold in this transfer window, regardless of the size of any offer.
Chelsea have improved their offer to around £3.5m, although the manager said he was unaware of that.
But he added that Gordon would play against Aberdeen on Wednesday and that discussions had already begun over extending his contract at the club.
Rodgers believes Gordon wants to stay at Celtic.
And the manager said he has a "great relationship" with the goalkeeper.
The manager confirmed that he does not expect any players to join the Scottish champions before the end of the transfer window.