Chelsea sealed their swoop for France forward Christopher Nkunku from RB Leipzig in a deal worth a reported £63 million ($80 million) on Tuesday.
Nkunku had already agreed a pre-contract with the Premier League club in December and has now rubber-stamped his move to Stamford Bridge.
"Chelsea is delighted to announce Christopher Nkunku will join the club from RB Leipzig ahead of the 2023/24 season," a statement on the Blues' website said.
