Charlton's summer signing Michael Morrison said he was "desperate" to join the Addicks to link up with manager Chris Powell.
The centre-half made the move from Sheffield Wednesday and faced many of his former team-mates in Charlton's 1-1 draw with the Owls on Monday.
Speaking to the Addicks' official website after that game, Morrison said: "I knew the manager was looking for a centre-half, and I was desperate to come here, especially when I saw the signings being made.
"I was itching to leave as early as March, and I was ready to go. I saw all these big names being signed, players who are on the up in their careers and wanting to prove a point.
"The gaffer has the right mix here and he's definitely a manager I wanted to work with. I knew what he was about and how he would work, and it will only get better as the lads gel together more."