Transfer interest is building around Lewis Hall, with Chelsea understood to be weighing-up a move for the Newcastle defender. While there has been no official bid as yet, the club may act swiftly if they decide to pursue the deal before the transfer window slams shut. Chelsea have laid out their intentions, but valuation and timing remain under debate. Barcelona, Arsenal and Liverpool are keeping tabs in case talks collapse or progress slows further. Chelsea's back line has been a real strength this season, conceding just 1.23 goals per game (38 in 31). Lewis Hall would be expected to slot into that unit and hold his own in an already solid setup. Newcastle continue to be linked with Mile Svilar, Lucas Bergvall and Pascal Struijk while Chelsea are also rumoured to be tracking Christian Michel Kofane, Goncalo Ramos and Karim Coulibaly. Stay tuned for more details as the story develops. Need more Chelsea transfer rumours? Follow @PlayerSwitchCom on Twitter for news and updates as they happen.