#1 Jonathan Tah - Bayer Leverkusen
Tah is easily one of the best young centre-backs in the world, as his combination of pace and power is something that is extremely rare to see from a defender.
The German International has been linked with a move to Real Madrid as a future replacement for Los Blancos defender Sergio Ramos. Tah's excellence as a leader and as a hard-hitting defender is a trait that can perfectly replace Luiz in his particular position.
Tah is also known for his leadership qualities and was also ranked as one of the best defenders in the Bundesliga.
Having a profile like none other, the 22-year-old is already linked to clubs like Barcelona and Bayern Munich, but it would be extremely important for Maurizio Sarri to secure the German defender at the earliest. With his introduction to the Stamford Bridge, he can form an abominable duo with his fellow national teammate Antonio Rudiger.