The Bosnia and Herzegovina international has been impressive since arriving from Roma last summer in a move in the region of £25million. link up with his old Saints boss Ronald Koeman at Goodison Park to kick start his career after falling down the pecking order behind Paul Pogba, Ander Herrera, Michael Carrick and Marouane Fellaini. PA:Press Association3Ronald Koeman is looking forward to some January spendingHe has £50million at h. But he faces stiff competition from, among others, Manchester City. w Cesar Azpilicueta has switched into a more central role in Contes preferred formation. cost Chelsea close to £40millionThe Italian first took Vidal to Juve from Bayer Leverkusen during his three-year reign at the Turin club. SunSport sources in China revealed Tianjin had a £50m offer rejected by the Blues last month. PA:Press Association3Diego Costa has been in scintillating form for Chelsea this season with 14 goal. And, in their last match, they lost in the Italian Super Cup to AC Milan, missing out on their first domestic trophy for two years. Watch West Ham striker Andy Carroll do his good deed for the day while on holiday in USACarroll has .