Newcastle United have announced the signing of Ki Sung-yueng on a two-year contract.
Ki is Newcastle's second signing of the close-season, following goalkeeper Martin Dubravka to the club.
"I'm pleased to welcome Ki to the club," said manager Rafael Benitez. "He is a player with lots of Premier League and international experience and it was an easy decision to bring him here."
South Korea captain Ki previously played for Newcastle's north-east rivals Sunderland - now in League One - during a loan spell in the 2013-14 season.
"Everyone knows how big this club is so I'm really looking forward to playing with my team-mates and for the fans," said the 29-year-old.