Charlton have completed the signing of veteran Christian Dailly after the defender impressed while on trial.
The former Scotland international, who turns 36 in October, was a surprise inclusion in Phil Parkinson's starting XI for Tuesday's Valley friendly against Ipswich.
The free agent put in an accomplished display alongside Miguel Llera, prompting Parkinson to secure his services on a one-year deal.
Parkinson told the club's official website: "We're delighted we've agreed a deal for Christian to join us.
"I said after Tuesday's game that in an ideal scenario we'd like three out-and-out centre-backs plus a utility player, and Christian fills the utility role perfectly."
Meanwhile, goalkeeper Darren Randolph has put pen to paper on a new one-year deal to stay at The Valley.
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