Bayern Munich are still waiting to hear from Tottenham Hotspur about whether they are prepared to sell England captain Harry Kane.
Bayern are playing down reports they set a deadline of Friday for a Spurs decision, but are growing frustrated with the situation.
Tottenham have refused to comment.
Kane is Spurs' all-time top scorer but has only one year left on his contract.
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There has been no suggestion Kane would be willing to extend his contract, so if Tottenham chairman Daniel Levy opts to keep the England striker it would effectively be ending the club's last chance to cash in on their talisman.