The former Ghana youth international banged in the goals in a spate of seven minutes in front of their home fans at the Generali Arena.
Nicolae Stanciu opened the scoring for Sparta Prague in the 17th minute and ten minutes later Tetteh made it 2-0.
In the 34th minute, the former Dreams FC player found the back of the net again
Tetteh was replaced in the 75th minute by Golgol Mebrahtu.
The 21-year-old has now tallied five league goals in nine appearances. Read Full Story
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