Ghana striker Samuel Tetteh was on target on the opening weekend of the Austrian Bundesliga as LASK Linz sealed a 2-0 win over Altach on Sunday.
The former star struck in the 7th minute at the Arena Marchtrenk before Klauss increased the tally to 2-0 in the 79th mark.
The forward is celebrating his 23rd birthday, in his third season for LASK Linz on loan from Red Bull Salzburg.
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Last season, Tetteh scored four goals in 21 league appearances.