Summer transfer window: Who is worth what?

Mbappe, Sanchez, Morata, Keita

We're less than a fortnight into the summer transfer window, but Europe's top clubs are already flexing their financial muscle.

Romelu Lukaku has joined Manchester United for £75m, Arsenal have snapped up France forward Alexandre Lacazette for a club-record £46.5m, while Everton have already topped the £100m mark for money spent.

But how much are those stars on the move really worth? And what fees will others linked with big-money transfers command?