On 18 January, Transfermarkt listed the most expensive signings in the winter transfer window for each of the 20 clubs. The biggest expense was Barcelona's €135 million acquisition of Coutinho.
The most expensive winter transfers in the history of 20 clubs
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ArsenalChelseaManchester UnitedLiverpoolNewcastle UnitedTottenham HotspurManchester CityParis Saint-GermainOlympique MarseilleBayern MunichBayer LeverkusenBorussia DortmundMilanRomaJuventusInternazionaleNapoliReal MadridBarcelonaAtletico MadridAubameyangDiego CostaCoutinhoEriksenLobotkaBruno FernandesAkanjiVlahovicPaquetaGallagherKhvicha KvaratskheliaOmar MarmoushTapsobaGordonVan DijkReinierBoeyEnzoVitinhaRobinio Vaz