Chelsea have announced the signing of Tiemoue Bakayoko from Monaco, with the midfielder signing a five-year deal.
The 22-year-old was key in Monaco's Ligue 1 triumph and exciting Champions League run to the semi-finals of the competition.
He's likely to take the place of Nemanja Matic in the Blues squad, as the Serb will, along with Diego Costa, miss their pre-season tour of Asia to negotiate an exit.
He told Chelsea's official website: 'I am very happy to be here and to join this great team.