Transfer interest is building around Gerard Martin Langreo, with Chelsea understood to be weighing-up a move for the Barcelona 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 continue discussions over the move, with no rival interest reported so far to complicate matters. Barcelona continue to be linked with Darwin Nunez, Aymeric Laporte and Eli Kroupi Jr while Chelsea are also rumoured to be tracking Alexis MacAllister, Andreas Schjelderup and Pep Chavarria. More on this story as it develops. Need more Chelsea transfer rumours? Follow @PlayerSwitchCom on Twitter for up-to-the-minute news from Chelsea.