Premier League champions Manchester City have confirmed the signing of Brazilian midfielder Fernando from Porto.
Porto revealed on Wednesday that the two clubs had reached an agreement in a deal worth £12million (€15million), with the formalities now sorted, although the exact details of his contract length have not been disclosed.
The 26-year-old told City's official website: "I am so happy to finally be joining Manchester City.
"I know there was talk of me possibly signing last January so I am delighted that the deal has now been done and that I am a City player.
"I'm looking forward to meeting my new team-mates and helping City to defend the title. It is a very exciting time to be part of this football club and I cannot wait to play in the Premier League.
"City fans can be assured I will give my all every time I play and I'm looking forward to many happy years in Manchester.
"I have enjoyed my stay with Porto and I thank the club and the fans for their support during my time in Portugal. Now I am ready for a new chapter in my career."
Fernando, who operates primarily as a defensive midfielder, started out at Vila Nova in his native Brazil.
He joined Porto in 2007 and won a host of domestic silverware, as well as the UEFA Europa League in 2010-11.
In moving to the Etihad Stadium, Fernando becomes City's second close-season signing following Bacary Sagna's arrival.