Multiple reliable reports are claiming that Porto are keeping tabs on Souffian El Karouani, who plies his trade as a defender for Utrecht. The move is still in the early stages, but interest appears to be growing. While Sl Benfica and Spartak Moscow have shown interest, Porto currently lead the race - though the situation could evolve if a deal drags on. Porto's back line has been a real strength this season, conceding just 0.27 goals per game (3 in 11). Souffian El Karouani would be expected to slot into that unit and hold his own in an already solid setup. Neither Utrecht nor Porto have been linked with any additional targets at this stage. Looking for Porto transfer rumours? Follow us on Twitter @PlayerSwitchCom for more rumours just like this.