Charlton have signed defender Richard Wood on a one-year deal.
The central defender has featured in four of the Addicks' pre-season friendlies and impressed manager Chris Powell enough to become his second summer signing.
Powell told the club's official website: "He's a left-footed centre-half who gives us options along the backline and we're happy to have him on board."
Wood added: "I think I have done quite well in the games which has been really good, and to get the opportunity to go to Spain with the lads - I think that influenced everything as I got to bond with them and the staff as well."
Wood, 28, left Coventry as a free agent in May.