#4 Kalidou Koulibaly
Arguably the best defender in the Serie A at the moment, Kalidou Koulibaly has played a key role in Napoli's success in the recent years.
The 27-year-old is a strong defender, who posseses great strength and speed. He also likes to play from the back and has completed 2046 passes with a passing accuracy of 88.6 percent this season.
The Senegalese international was included in the Serie A Team of the Season in the last three seasons and he is likely to become the part of it this campaign as well.
#3 Aymeric Laporte
Manchester City's defensive unit has stepped up to the occasion in the last few months and the Cityzens conceded just two goals in the last 12 league games. The French international, Ayermic Laporte is the key man in Pep Gaurdiola's backline and he has been awarded with the inclusion in the PFA Team of the Year for his exploits this season.
The 24-year-old won 40 tackles in the English top division this campaign, along with making completing 90 clearances and making 37 interceptions in EPL. Besides his brillance at the back, Laporte also contributed two goals and two assists.