FIFA have unveiled their official list of the most expensive signings from the January transfer window with Manchester United's Amad Diallo topping the charts following his £37million move from Atalanta.
United paid an initial £19m and will also pay up to £18m in add-ons for the 18-year-old midfielder.
The list is determined by the maximum fee each transfer could reach with some deals set to rise based on various factors including performances.

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FIFA'S OFFICIAL LIST OF MOST-EXPENSIVE JANUARY TRANSFERS
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