Leicester City boss Martin Allen claimed the Foxes did all they could to prevent club captain Paddy McCarthy from joining Charlton.
Republic of Ireland defender McCarthy, 24, made a £650,000 switch after rejecting a new contract offer.
Allen told the Leicester Mercury: "We made him a very good offer, but he expressed his wish to leave.
"If he didn't want to play for this club and be part of our success, that is his choice. I wish him well."