Begovic is facing disciplinary action after missing the Carling Cup victory against Shrewsbury on Tuesday. Manager Tony Pulis claimed the Bosnian goalkeeper had refused to play but Begovic says it was down to a misunderstanding.
"This is an internal matter - and we will decide on what action to take," Coates told Sky Sports News HD. "Asmir Begovic remains our player. He is regarded as one of the best young goalkeepers in the Premier League and we are not interested in any new offers from Chelsea."
He added: "We are not interested in what Chelsea do and we have already rejected an offer, from them, for Begovic.
"We wouldn't welcome another bid from Chelsea and, as far as I am aware, we have not received a new offer from Chelsea for him."
Source: PA
Source: PA