Getty.Ritabrata BanerjeeShock late transfer twist leaves Chelsea's £20m David Datro Fofana deal on brink of collapseChelseaD. FofanaTransfersAEK AthensPremier LeagueDavid Datro Fofana's move to AEK Athens could collapse as Chelsea still disagree on several points with the Greek club.Article continues belowArticle continues belowArticle continues belowArticle continues belowFofana's loan move could collapseChelsea disagree with AEK AthensGreek window closes on Wednesday night