Chelsea have confirmed that midfielder Oscar has signed a long-term contract extension with the club.
The 23-year-old Brazilian international has committed himself to the Blues until 2019.
Oscar, who has scored four goals in 15 games this season, joined Chelsea from Internacional in 2012.
"I am so happy because I love playing for Chelsea and living in England," he told the club's official website. "I have enjoyed playing here for two years, and now I have five more, so I am very happy."
Oscar has scored a total of 27 goals in 126 appearances for Chelsea during his time in West London.