Manchester City have formally completed the loan signing of Frank Lampard.
Manager Manuel Pellegrini hailed the arrival of a "world-class midfielder" in a move, first mooted last week, that he believes will work "perfectly" for everyone.
Lampard, Chelsea's record goalscorer, has signed from New York City FC until January, and feels the move will enable him to be in top shape for the start of the 2015 Major League Soccer season.
The 36-year-old, who scored 211 goals in 649 games for Chelsea, was recently announced as one of New York City's designated players as the new club assembles a squad.
"Joining up with Manchester City is a fantastic opportunity for me to continue to train and play at the top level and make sure I am in top condition for New York City," he told the Premier League champions' official website.
"It has been an amazing few days for me since the unveiling in Brooklyn, and everyone connected with both clubs has been fantastic to me. This is a new chapter of my career, and I'm really excited about the experience.
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"I met Manuel and some of the players in New York, and I'm looking forward to getting into training and making a contribution for Manchester City ahead of my move over to New York."
Pellegrini added: "Frank is a world-class midfielder. and this is an opportunity which works perfectly for everyone -- the player, Manchester City, and New York City.
"I'm looking forward to working with him and integrating him into our squad. New York have made a fantastic signing by recruiting Frank, and I'm really pleased that we'll be able to have him with us for the first half of our season and help prepare him for his new challenge."
New York City FC Sporting Director Claudio Reyna said: "This is the perfect opportunity for Frank. He is in great shape following the World Cup, and training and playing with our colleagues in Manchester will enable to Frank to be fit and ready for our inaugural training camp.
"Everyone has been hugely impressed with Frank's positivity, and I'm sure he will bring a lot to City during his stint with the club."
City, who sold midfielder Jack Rodwell to Sunderland on Tuesday, hope to make one more summer signing.
They have been close to a deal for Porto defender Eliaquim Mangala -- who will cost 32 million pounds -- for several weeks, but it has not yet been ratified.