Chelsea have completed a £37m deal to sign Ajax defender Jorrel Hato.
The 19-year-old has finalised a seven-year contract with the Blues after a medical in London over the weekend.
The Netherlands international has become the eighth signing of the summer transfer window for the Fifa Club World Cup champions.
"I'm very excited, I'm so happy to be here," said Hato.
"I thought a lot about my future and wanted to take the next step in my career. Chelsea is the best place for me to do that so I'm very happy."
More to follow.