Barcelona have opened talks with Sl Benfica over the potential transfer of Goncalo Calisto Oliveira, who currently plays as a defender. Negotiations are active and ongoing after an opening bid was submitted, though there is reportedly still some distance between the clubs on valuation. However, discussions are said to remain open and constructive - as both sides explore whether there is a deal to be done. The transfer remains in progress, and with no other clubs involved, Barcelona look to be negotiating from a comfortable position. Barcelona's back line has been a real strength this season, conceding just 0.71 goals per game (5 in 7). Goncalo Calisto Oliveira would be expected to slot into that unit and hold his own in an already solid setup. Sl Benfica have also been linked with Pedro Neto and Karim Benzema while Barcelona are reportedly monitoring Sehrou Guirassy, Kobbie Mainoo and Julian Alvarez. Need more Barcelona transfer rumours? Stay tuned to PlayerSwitch for live transfer news and rumours from across the world of football.