However, there's no guarantee that Bayern will be able to poach Wirtz from their Bundesliga rival. They are likely to face competition from other clubs, particularly if Xabi Alonso leaves Leverkusen for Real Madrid, while it hasn't been ruled out that the Germany international could decide to stay with Leverkusen and sign a new contract. Dreesen has also admitted that finances will also be a factor and that Bayern won't overpay for the 21-year-old.
WHAT BAYERN SAID
Dreesen told Abendzeitung: "It must always be in FC Bayern's interest to have the best German players. But Uli Hoeness also always said that FC Bayern must act economically sensibly. And he would not agree with us if we did not observe both of his basic pillars."
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WHAT NEXT FOR WIRTZ
Speculation over Wirtz's future is likely to continue this season and there will be plenty of scrutiny on the forward's form at Leverkusen. Alonso's side return to action after the international break against struggling Heidenheim in the Bundesliga.