Hansi Flick believes David Alaba has been as impressive this season as he was in Bayern Munich's treble-winning campaign and remains hopeful the defender will stay in Bavaria.
Alaba's Bayern contract expires at the end of 2020-21 and tense negotiations over a renewal have prompted a public spat between his father and board member Uli Hoeness.
George Alaba reacted furiously to Hoeness' insinuation his son was only interested in money and accused him of "spreading dirty lies".
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The Austria international is consequently said to be a target for a number of top clubs, with Bayern facing the possibility of losing another key member of last year's successful side after Thiago Alcantara joined Liverpool.