Former Manchester City's player, Argentine forward Sergio Aguero (R) arrives with FC Barcelona president Joan Laporta to hold a photo session on the pitch of the Camp Nou stadium in Barcelona during his official presentation as new player of FC Barcelona on May 31, 2021. - Barcelona have signed Argentinian forward Sergio Aguero on a deal until 2023, the Catalan giants announced today. In a statement, Barca said that Aguero, who arrives after a decade at Manchester City, has a buy-out clause "set at 100 million euros ($122 million)." (Photo by LLUIS GENE / AFP)