Manchester United are top of the table ahead of their crunch Premier League clash with rivals Liverpool and they have already completed some January business.
Amad Diallo has finalised his switch from Atalanta and Timothy Fosu-Mensah has joined Bayer Leverkusen in search of more regular first-team football.
There is plenty more business that could be done before the window slams shut, with potential incomings and outgoings all linked.
There are several senior stars whose contracts are due to expire at the end of the season and they could finalise pre-contract agreements this month.
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