After starting out at Vitória, he moved to Benfica, remaining with the club for five seasons (three complete). He joined Chelsea in January 2011, winning the UEFA Champions League during the 2011–12 season. In the following season he won the UEFA Europa League. In June 2014, he transferred to Paris Saint-Germain for a fee of £50 million, a world record transfer for a defender, and won all four domestic competitions over his two seasons in French football. He returned to Chelsea in August 2016 in a £30 million transfer deal.