Krystian Bielik is in line for his Arsenal debut tomorrow night.
Bielik could make his Arsenal debut on Monday night at Newcastle with the Under-21 side, says Arsene Wenger.
The Pole joined Arsenal last week from Legia Warsaw.
Wenger told the club's official website. "Bielik is coming along very well. Serge (Gnabry) will play on Monday night at Newcastle, with Bielik."
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