Goalkeeper James Trafford said Manchester City is "the place I call home" as he returned to the club from Burnley in a deal worth £27m plus add-ons.
The 22-year-old City academy graduate signed for the Clarets for up to £19m in July 2023.
He impressed last season as Scott Parker's side won promotion back to the Premier League - keeping 29 clean sheets across 45 Championship games - and was named in the division's team of the year.
City had a buy-back clause for Trafford and also matching rights, allowing them to match any offer from another club.
They moved for the player following a £27m bid from Newcastle - and Trafford opted for a return to Manchester.
He has signed a five-year contract with the option for another year at Etihad Stadium, and will wear the number one shirt.
"Rejoining City is such a special and proud moment both for me and my family," Trafford said.
"I always dreamed that one day I would be able to come back to Manchester City.
