A youth product of Osasuna, Azpilicueta spent three seasons in La Liga before switching to Marseille, winning four major honours with the French club. In the summer of 2012, he moved to Chelsea, winning the Europa League in his first season and a domestic double two years later. He has made over 400 appearances for Chelsea and is currently eighth on their list of all-time appearances; Petr Čech is the only non-English person to have played more times for the club. He captained Chelsea to win the Europa League in 2019 and the Champions League in 2021.