22-year-old Eliaquim Mangala is one of the brightest, young talents in world football. European heavyweights such as Chelsea and Manchester City reportedly scouted him earlier in the summer.
Barcelona have been unsuccessful in their attempts to sign David Luiz and Daniel Agger this summer and have struggled defensively in recent years.
Mangala would be provided with ample first-team opportunities - a dream move for any modern-day footballer.
The Catalan outfit may have to cough up over £23million to land Mangala from FC Porto, who rate him as one of the very best.