Sunderland's Greg Halford has joined Charlton on loan until the end of the season.
The defender moves to The Valley after making just eight league appearances for the Black Cats following his switch to Wearside from Reading in the summer.
Halford's move is set to be the first of two pieces of business between the two clubs, with midfielder Andy Reid currently talking to the Premier League club after a fee was agreed.
Addicks boss Alan Pardew is confident a move for Halford would be beneficial for both the club and the player, who has not enjoyed success since his move from Colchester to Reading in January last year.
He spent just six months with the Royals before moving to the Stadium of Light in the summer but is now set for The Valley.
Pardew told Charlton's official website: "Part of doing business is to make sure you try to do something that's useful for your club.
"I lost Jermain Defoe in a similar situation when I was at West Ham United, and brought in Bobby Zamora.
"Hopefully, we can have similar success with Greg. He's coming here on loan and I think he's got a lot to prove.
"It didn't work out for him at Reading, it didn't work out for him at Sunderland, so I think he needs to be a success here, but I think he will be a massive asset for us."