The report claims that?discussions over a transfer?to the La Liga side have been ongoing since last summer but Navas was keen to see out his City contract. an Instagram post linking him with a move to ChelseaRelated StoriesART DEALERAntonio Conte chasing £38million former Juventus pal Arturo Vidal to bring him to Stamford BridgeWIT'S ENDChelsea and Everton target Axel Witsel set to snub Prem clubs after being offered incredible deal in ChinaWIJN AT ALL COSTSLiverpool star Georginio Wijnaldum urges Reds to turn up heat on Prem leaders ChelseaCOSTA CONFESSIONChelsea ace Diego Costa admits he knew he was bad. Under Sir Alex Ferguson, there was an imposing centre-back pairing throughout. CHINESE club Tianjin Quanjian are plotting? a stunning £80million bid for Chelsea striker Diego Costa. Getty Images3Ghoulam could be a perfect back-up for Marcos AlonsoRelated StoriesThe unexpected guest. Allan Saint-Maximin is a tricky, pacy winger who started his career at Saint-Etienne before Monaco snapped him up. However, should Real Madrid come calling, it will become almost impossible for Juventus to hang on to the star. But with?Les Canaris floundering at the bottom end of Ligue 1, the midfielder is earning rave reviews. He has also shown great ability from dead ball situations. Getty Images17Issa Diop is a teenage powerhouse in Ligue 1Getty Images17Standing around 6ft 4in tall, he is a monster of a centre-back?who dominates in the airHowever, averaging 4.