I remember reading awhile back SPORT at times gets paid by player agents to "Advertise" their client and link Barca's name with them.
This was the case with Aymen Abdennour,last year. Sport ran a couple of covers on him about "wanting to join Barca" and the Club was considering buying him! but it turns out it was pretty much a ruse and we were never considering to sign him. It was a case of his agent trying to get Abdennour, a better deal with some of the clubs he was in real talks with.
in this case however it seems like SPORT prefers Marquinhos, over any other young CB we were following and likely to sign (Umtiti) and making a big stink about it. Marquinhos, was obviously one of our potential targets along with Laporte,Stones,Giminez,Umtiti etc. But at this point it's probably easier trying to convince a brick wall to move than negotiating with PSG for Marquinhos.
It's probably clear we moved on already and signed Umtiti (or close to) but Sport is trying to keep the dream alive.