However, he may have already found his next club, as Sturm Graz want to sign him in the summer.
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Per The Standard, the Austrian team are pushing to finalize the deal in the coming weeks.
Biereth, who signed in January, has netted eight goals in 11 games for the club so far.
He has been a Gunner since 2021, when he signed from crosstown rivals Fulham.
