Christopher Nkunku has vowed to "give everything" for Chelsea after completing his move to Stamford Bridge.
The France forward has completed his £63million switch from RB Leipzig to the London club and penned a six-year contract with the Blues. The 25-year-old had committed to moving to Stamford Bridge when he signed a pre-contract agreement last December.

Chelsea will hope he can bolster an attack that scored only 38 goals in the Premier League last season. After a toothless outing last season, the Premier Leauge club will bank their hopes on Nkunku, and the player has ensured he will give his all for his new club.
"We can say that I am a hard worker," Nkunku told Chelsea's official website after completing the switch.
"I will give everything for the club, for the fans and to help the team bring some trophies, to give the best of my football. I hope I will make them as happy as I am to be here at this club," he added.
Nkunku scored 23 goals in 36 appearances for Leipzig in an injury-hit 2022-23 in which he was forced to miss the World Cup.
Chelsea's struggles in the second half of last season, when they limped to a 12th-placed finish, have not dampened his will to move into the club.
"I think the project was good for me. It is a good project for me to develop myself as a player and a man also. And this is a good city, after all, and for sure I want to improve in football and I want to win trophies and improve myself also," the Frenchman added.
Nkunku is the first new player to arrive at Chelsea since former Tottenham and Paris St Germain boss Mauricio Pochettino was appointed as manager. The player says he is yet to meet the Argentine manager but confirmed his excitement and eagerness to work with him.