TSV 1860 Rosenheim managed to beat the Bayern Munich II side 3-2 at the Jahn Stadium.
The 24-year-old registered his name on the score sheet for the young Bavarians on the 57th minute of the game.
He lasted for the entire duration of the match.
Okyere made his debut appearance for the senior national team of Ghana in a double-header friendlies against Iceland and Japan in June.