Charlton boss Alan Curbishley has hit out at Scott Parker's attitude, with the England midfielder set for a £10m move to Chelsea.
The Blues are putting the finishing touches to a package, with Blues striker Carlton Cole extending his loan spell at The Valley.
Curbishley was hugely critical of Parker, accusing him of poor behaviour.
The Addicks boss said: "From the moment he heard Chelsea were interested, he hasn't wanted to play for us."
Charlton confirmed that they had been forced to accept Chelsea's bid for the England midfielder, who had clearly been unsettled by the interest in him.
Curbishley said: "Scott has been totally not focused on
what he was doing.
"I've known Scott for 10 years, and he's been phenomenal for the last three seasons.
"But the last three weeks have left a bad taste in the mouth.
"He stated on many occasions he doesn't want to play for us, and his conduct
in training has not been what it should have been.
Born: 13 October, 1980
1993: Shows off his ball-juggling skills in an television advertisement
1 August, 1997: Signs professional terms with Charlton
28 December, 1997: Makes Charlton debut as substitute
Scores first senior goal for Charlton
16 November, 2003: Makes England debut in 3-2 loss to Denmark
"Scott Parker gives 100% in games and the same in training.
"But when he doesn't have that about him he's half the player - and that's how it's been for a couple of weeks."
"Scott signed a new five-year contract in the summer - and although I understand him wanting to leave, I'm not happy about with how it's come about.
"He's made it abundantly clear in more ways than 10 he wants to leave.
"We're all very disappointed because of where we are in the league and
because this has happened now."
A statement on Charlton's website said: "Following a further bid from Chelsea, Charlton now confirm that they are in negotiations with Chelsea with a view to completing the transfer of the England international midfielder."
Charlton initially turned down a bid of £7.5m for Parker and Chelsea are more likely to have to pay nearer the £12m mark for the 23-year-old.
Cole is currently on loan at The Valley until the end of this season, but Charlton are keen to extend it to take in the whole of next season.
Curbishley said: "Carlton has been talked about, and I'm sure he'll be talked about.
"I don't think we'll be able to keep him permanently, but there are other options. It's a complicated deal."