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The January window had originally been set to shut in mid-January to avoid having players distracted by potential moves once Serie A football resumed from its winter break.
However, the clubs voted to change it back to January 31 and even made it a later closing time, 19.00 GMT (20.00 CET), compared to the traditional Italian ending of 17.00 GMT.
See the latest Serie A predictions and betting tips with Eurotips.co.uk