Guardiola identified the defensive areas which required improvement for City in the summer transfer window in order to challenge for the league title, particularly in the goalkeeper and full-back positions. Due to Bravo's struggles the previous season, Ederson was brought in as the new first-choice goalkeeper. Wing-backs Benjamin Mendy and Kyle Walker were also signed, while dispensing of all the current senior full-backs at the club in Aleksandar Kolarov, Gaël Clichy, Bacary Sagna and Pablo Zabaleta. Additionally, Bernardo Silva and Danilo were also acquired from Monaco and Real Madrid, respectively.