Sturm Graz and Biereth took over first place in the Austrian league on Friday evening after a huge gift for the Danish striker.
A good ten minutes before time, Biereth received a helping hand from Rapid Wien's goalkeeper, who dropped a soft ball at the feet of the Dane.
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Biereth was able to easily score the only goal of the match to make it 1-0.
The striker is on-loan at Sturm Graz to June.