Nathaniel Clyne has returned to Crystal Palace on a short-team deal.
The former Liverpool fullback played 137 times for the Eagles before joining Southampton in 2012, where he spent three years before moving to Liverpool in 2015.
He told the club's official website: "I'm a London boy, this is where I grew up. I'm back home and all my family and friends are here.
"It's surreal being back, I'm enjoying it, and hopefully I can just crack on and enjoy my football again."
Chairman Steve Parish added: "Nathaniel is a fantastic character to have around this squad and we are delighted to secure his services for the upcoming period.
"He is a first-rate professional, just as he was when I first met him more than a decade ago.
"His presence and experience will be invaluable.