#4. Kalidou Koulibaly
The Senegalese is SSC Napoli's powerhouse. His rock-solid performances caused a stir in the transfer market as big guns like Manchester United, Paris Saint-Germain, Barcelona, Real Madrid and Juventus were all ready to break the bank to sign him.
Kalidou Koulibaly was named the Serie A's defender of the season for his spectacular displays in 2018/19 campaign. The 28-year-old managed 135 clearances, 35 blocks and won 66 per cent of his total tackles throughout the season. He won 54% of his ground duels and 55% of his ariel duels.
The Senegalese also reached the AFCON finals with his national team, but his side could not get past Algeria. Even though Napoli may be struggling in the league, Koulibaly has been his usual self. The player has won 61% of his duels and won 64% of his tackles and has been rock solid at the back.