Atletico Madrid have confirmed the sale of Argentinian forward Sergio Aguero to Manchester City in a club-record £38 million transfer.
"Atletico Madrid and Manchester City have reached an agreement under which the English club has the rights to Sergio Leonel Aguero," said a statement on the Atletico website.
"From now on the Argentine player ceases to be part of our staff. The club thanks him for his services rendered during the five seasons and wishes him luck in his new post."
City announced that 23-year-old Aguero had signed a five-year contract and that he is likely to be in the squad for this weekend's Dublin Super Cup tournament. He will wear the No16 shirt.
"I saw City win the FA Cup last season. I am sure that in the future we will be fighting for plenty of major trophies," Aguero told Manchester City's website. "I don't think I will have too many problems settling into the team.
"I will do what the manager asks me to do and try to work the way he wants me to. I am sure everything will be fine. I am very relaxed about it."
Aguero had said yesterday that he had completed his transfer to City. "I am now a City player. Happy to be in this club and this city. Thanks to all for the welcome and the reception," Aguero wrote on his Twitter account.
The player, who is the son-in-law of Argentina legend Diego Maradona, underwent a medical in Manchester yesterday. He is seen as the answer to City's problems in attack, where Carlos Tevez has reiterated his desire to leave the club.
Aguero's transfer is City's third signing of the summer following the arrivals of Gael Clichy from Arsenal and Stefan Savic from Partizan Belgrade.