Bayern Munich chief executive Karl-Heinz Rummenigge says there is no agreement in place yet to sign Schalke's Leon Goretzka on a free transfer.
The midfielder is out of contract with the Bundesliga side at the end of June and can now negotiate a pre-contract agreement with other clubs.
However, Rummenigge has denied a deal is already in place for the 22-year-old to join the German champions.
He told Sky in Germany: "You only have an agreement, when the contract is signed and the player passed the medical tests. We are not that far yet.
"Now the player has to decide, I heard the decision will be made within the next days, so before the end of January.
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"And of course it would be very nice, if he decides to join Bayern Munich."
Goretzka has missed Schalke's last five games with a leg injury but he has returned to first-team training and could make a return for the Royal Blues this month.
He has been a key part of Schalke's success this season with Domenico Tedesco's side sitting third in the Bundesliga and in the German Cup quarter-finals.
Goretzka joined Schalke in 2013 from Bochum and has become one of the brightest talents in European football, scoring six goals in his 12 appearances for Germany.