The 21-year-old has established himself in Antonio Conte's first-team squad this season and scored on his full debut for the club, in a 5-1 win over Nottingham Forest in the Carabao Cup.

Upon signing the new deal, which will now run until 2022, Musonda said: ‘I am very happy and very proud. I came here very young and am very happy to continue my journey here. I love this club so it’s a great moment for me and my family. Now I want to establish myself and progress into the team and stay here permanently.’

Club director Marina Granovskaia said: ‘We are very happy Charly has committed his future to the club. He is an exciting talent who we believe can develop into an important first-team player and we hope he will be a part of Chelsea’s successes for a long time to come.’