For many, he is arguably the best centre-half on the planet after Liverpool's Virgil van Dijk.

And if Kalidou Koulibaly is on the market this summer, then there will be no shortage of suitors.

The man known as K2 has been a dominant, decisive presence at the heart of Napoli’s defence for six years, since arriving in Serie A from Belgian football.

The Senegalese international’s consistently excellent displays have earned him rave reviews, and he has played his part in something of a renaissance at the Stadio San Paolo.