Chelsea – Michy Batshuayi (£33m): 
The Marseille striker narrowly pips N’Golo Kante to the most expensive slot during Chelsea’s transfer window. Chelsea’s signing of Michy Batshuayi was a bit of a surprise. The young, dreaded Belgian is relatively new to the scene of top league football, having become a starter at Marseille just last season.
Revealed: Every Premier league team’s biggest signing this summer
