The giant 6ft 5 centre-back would be a huge presence in the Chelsea defence, in the tough environment of an away game at Huddersfield Town.
The Senegalese player played a crucial role for Napoli in their Serie A season last term, in which they pushed giants Juventus all the way in an attempt to win Serie A. He is a player well-known by Maurizio Sarri.
Koulibaly is more than just a physical and imposing presence. He is composed on the ball and could be a key player in the Chelsea defence throughout the season. The Blues lacked a real leader at the back last season, after John Terry left the club for Aston Villa.
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