Transfer interest is building around Lisandro Martinez, with Atletico understood to be weighing-up a move for the Man Utd 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. Atletico remain optimistic, but the deal is not without hurdles. Barcelona continue to monitor developments and could yet re-enter the race if negotiations stall or valuation gaps remain unresolved. Atletico's back line has been a real strength this season, conceding just 0.88 goals per game (23 in 26). Lisandro Martinez would be expected to slot into that unit and hold his own in an already solid setup. Alongside this, Man Utd are said to be exploring Andrey Rafael Quintino dos Santos, Youri Tielemans and Orlando Gill with Atletico likewise connected to Morten Hjulmand, Kang In Lee and Joao Gomes. Want to see how the story develops? Stay tuned to PlayerSwitch for more news and transfer rumours just like this one.