As Leverkusen chase a treble and an unprecedented unbeaten season in all competitions, Wirtz may have other thoughts on his mind.
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Per Bild, he is attracting the attention of Arsenal, Manchester City, Barcelona, and Bayern Munich.
The Gunners are at the forefront of the queue to sign Wirtz, but may have to wait.
He has a long contract and with manager Alonso staying at Leverkusen, he may want to remain as well.