Luis Enrique and coaches before him have been forced into using Javier
Mascherano as a central defender, while the likes of Thomas Vermaelen and Jeremy Mathieu have struggled with injuries.
With Javier
Mascherano, Thomas Vermaelen and Jeremy Mathieu all entering their thirties, Barcelona are currently in the market to sign a new
central defender and Paris Saint - Germain star Marquinhos has been seen
as the main target for the Spanish champions.