Highly-rated Bertrand Traore has completed his move to Chelsea, signing a four-and-a-half year deal.
The 18-year-old agreed the deal with the west Londoners in October, with the opening of the January transfer window allowing him to make the switch from Association Jeunes Espoirs De Bobo-Dioulasso in his native Burkina Faso.
"I'm an attacking midfielder," he told Chelsea TV.
"I can play in the number 10 position, I can play on the wings and I'm good on the ball. I can shoot well and am strong in a one v one situation, so I can score goals.