City offered Gundogan a new contract, but he will instead join the Spanish champions on a two-year agreement.

The Germany midfielder, whose contract with City expires at the end of June, said it was a “total privilege and pleasure” to play for the club.

“Manchester has been my home, and I have felt like part of a very special family at City,” Gundogan said in a statement.

The 32-year-old played 51 games in 2022-23, scoring 11 goals and helping City win the Treble.

He scored six goals in his final seven appearances, including a brace in Manchester United’s 2-1 FA Cup final victory.

Gundogan’s deal with Barcelona has a 400 million euro buyback clause.

He joined City from Borussia Dortmund in 2016 for an estimated £20 million and was boss Pep Guardiola’s first acquisition.

Gundogan went on to participate in 304 games, scoring 60 goals and winning 12 major trophies, including five Premier League crowns, one Champions League, two FA Cups, and four Carabao Cups.

He stated that he enjoyed “hundreds of unforgettable moments” at City and that captaining the team to the Treble was the “greatest experience” of his career.

“First and foremost, I’d like to thank Pep.” To have had the opportunity to play under and learn from him for so long is something I will never forget.

“I’d also like to thank all of my teammates, past and present, who have all played such an important role in making my time here so memorable.”

“I’d also like to thank the incredible City fans.” They have been there for me since the beginning, and I am grateful to them all.”