Multiple sources are reporting that Paris SG have added Diogo Costa as one of their top transfer targets. The Porto goalkeeper is rumoured to be attracting attention ahead of the next transfer window, with insiders claiming preliminary talks could soon take place. Aston Villa and Galatasaray remain in the background, but for now, Paris SG are leading the way in ongoing talks. Paris SG's back line has been a real strength this season, conceding just 0.82 goals per game (27 in 33). Diogo Costa would be expected to slot into that unit and hold his own in an already solid setup. Paris SG have recently been linked with Yan Diomande and Maghnes Akliouche while Porto have had no rumoured targets. Stay tuned to PlayerSwitch for up-to-the-minute football transfer rumours and news from your club and beyond.