Barcelona technical secretary Robert Fernandez was in attendance to watch Cesar Azpilicueta as Chelsea beat Manchester United on Sunday afternoon.
Whilst the Catalan side sit top of the La Liga standings and have got the very best of their summer signings; work is still progressing behind the scenes to bring in a number of new faces.
Paulinho, Gerard Deulofeu, Ousmane Dembele and Nelson Semedo arrived over the summer and all four have impressed, but boss Ernesto Valverde is keen to look to the future and build his own project at the club.
Defensive options are reportedly key for the former Athletic Club head coach with veteran defender Javier Mascherano expected to leave for Major League Soccer next summer.
Gerard Pique and Samuel Umtiti have been mainstays in the Barca starting eleven, but Valverde is keen to add options.
Thomas Vermaelen was included in the Champions League squad last week against Olympiacos but he is also expected to leave like Mascherano, giving Valverde no other options at the back.
Azpilicueta has long been admired by Barca, and Robert Fernandez was closely watching the Spanish international at Stamford Bridge on Sunday.
The defender played an important part in Chelsea’s 1-0 victory and there is no doubt Fernandez will return to the Camp Nou with a glowing report.
Colombian defender Yerry Mina is also on the club’s shortlist with some reports claiming a deal is already complete.