NAPLES, ITALY - SEPTEMBER 17: Kalidou Koulibaly of Napoli in action during the Serie A match between SSC Napoli and Bologna FC at Stadio San Paolo on September 17, 2016 in Naples, Italy. (Photo by Francesco Pecoraro/Getty Images)
NAPLES, ITALY - AUGUST 01: Kalidou Koulibaly of Napoli in action during the pre-season friendly match between SSC Napoli and OGC Nice at Stadio San Paolo on August 1, 2016 in Naples, Italy. (Photo by Francesco Pecoraro/Getty Images)
ROME, ITALY - FEBRUARY 03: Kalidou Koulibaly of SSC Napoli in action during the Serie A match between SS Lazio and SSC Napoli at Stadio Olimpico on February 3, 2016 in Rome, Italy. (Photo by Paolo Bruno/Getty Images)
GENOA, ITALY - SEPTEMBER 21: Kalidou Koulibaly (R) of SSC Napoli is challenged by Leonardo Pavoletti (L) of Genoa CFC during the Serie A match between Genoa CFC and SSC Napoli at Stadio Luigi Ferraris on September 21, 2016 in Genoa, Italy. (Photo by Marco Luzzani/Getty Images)
KIEV, UKRAINE - SEPTEMBER 13: Serhiy Sydorchuk (R) of Dynamo Kyiv in action against Kalidou Koulibaly (L) of Napoli during the UEFA Champions League Group B match between Dynamo Kyiv and Napoli at NSC Olimpiyskiy Stadium in Kiev, Ukraine on September 13, 2016. (Photo by Alexey Furman/Anadolu Agency/Getty Images)
