Bayern Munich have reached an agreement with Schalke midfielder
Bayern CEO Karl-Heinz Rummenigge has confirmed that the club are attempting to secure Goretzka's signing.
"You only have an agreement, when the contract is signed and the player passed the medical tests. We are not that far yet," he said earlier this week.
"Now the player has to decide, I heard the decision will be made within the next days, so before the end of January.
"And of course it would be very nice, if he decides to join Bayern Munich."
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"There's nothing new to report," Heidel said - quoted by ESPN. "All of the club, including Tonnies, is fighting to keep him here."
Goretzka has scored four goals in 11 Bundesliga appearances so far this season, attracting interest from a host of European giants.