David Luiz is delighted with his new Chelsea deal.
The five-year agreement is worth a mooted £100,000-a-week.
Luiz said: "I am very happy to sign a new contract with Chelsea.
"It is a great club and I look forward to winning more trophies here.
"I want to play for a long time at the top level - which is what playing for Chelsea means.
"I love everything about the club and especially the fans, who have made me very welcome and given me great support."