Owen Coyle has confirmed Bolton have agreed to sell Gary Cahill to Chelsea.
The England defender, who is out of contract at the end of the season, is expected to join Chelsea for a fee in the region of £7million.
Manager Andre Villas-Boas has been keen to bolster his defensive options after telling Alex he can look for a new club.
Speaking ahead of Saturday's clash with Wolves, Coyle said: 'The situation is that the clubs, Bolton Wanderers and Chelsea, have at this moment in time agreed a fee for Gary (Cahill).
'Now it is up to Gary's representatives to speak to Chelsea.
'From our part, I've said to Gary that this is why he has representatives and that his focus is on football and football only.
'Gary's mind will on making sure that he is ready to give a big performance for Bolton Wanderers against Wolves. He has to be ready to give everything, as he always is.'
If Cahill, who joined Bolton in 2008 from Aston Villa, is to leave Wanderers in the next few days, Coyle will view it as a blessing that the move is occurring early in the January transfer window, giving him a chance to reinvest the money in new players.
The Trotters are currently 19th in the table and with Cahill departing, it would seem imperative that the squad - which has been blighted by injuries - is strengthened over the coming weeks if they are to avoid relegation.
Bolton are expected to move for New York Red Bulls defender Tim Ream, who recently spent some time training with them, although Coyle would not be drawn at this point on the specific identity of any targets.
The England defender, who is out of contract at the end of the season, is expected to join Chelsea for a fee in the region of £7million.
Heads up: Bolton defender Cahill is on the brink of joining Chelsea
Speaking ahead of Saturday's clash with Wolves, Coyle said: 'The situation is that the clubs, Bolton Wanderers and Chelsea, have at this moment in time agreed a fee for Gary (Cahill).
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'From our part, I've said to Gary that this is why he has representatives and that his focus is on football and football only.
'Gary's mind will on making sure that he is ready to give a big performance for Bolton Wanderers against Wolves. He has to be ready to give everything, as he always is.'
If Cahill, who joined Bolton in 2008 from Aston Villa, is to leave Wanderers in the next few days, Coyle will view it as a blessing that the move is occurring early in the January transfer window, giving him a chance to reinvest the money in new players.
Bolton are expected to move for New York Red Bulls defender Tim Ream, who recently spent some time training with them, although Coyle would not be drawn at this point on the specific identity of any targets.