Juventus centre-back Merih Demiral has already gained a number of suitors at the start of the January transfer window, but his current employers are not willing to let him leave the club this month.
Leicester City, Arsenal and Borussia Dortmund are among the sides to be linked with the 21-year-old, formerly of Sassuolo and Sporting.
Reports suggest that the Bundesliga side have offered around €40 million for the defender's services, while Leicester's bid came in significantly lower.
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The Foxes have since reportedly upped their offer to match that of Dortmund, while Arsenal have also been linked with a move to solve their defensive woes, made even more serious by Calum Chambers' recent injury.