Barnsley made Austrian striker Patrick Schmidt their second signing of Thursday evening and their 12th of the summer transfer window which is now closed.
The 21-year-old joins from Admira Wacker in the Austrian top flight, for whom he scored 15 goals in 64 appearances.
The Austria under 21 international has signed a four-year contract, with the Reds having an option of adding a fifth, and joins for an undisclosed fee.
He follows left-back Clarke Oduor who arrived from Leeds United earlier on deadline day.
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