Danny Welbeck started for the under-23s in their away match at Leicester City on Sunday afternoon.
The England international lined up through the middle, supported by Chris Willock and Vlad Dragomir on the flanks, with the likes of Cohen Bramall, Reiss Nelson and Ben Sheaf also all starting.
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The hosts took the lead ater 20 minutes, Josh Knight nodding Layton Ndukwu's corner beyond Hugo Keto.
Ndukwu increased Leicester's advantage seven minutes after the break before Welbeck was substituted for Eddie Nketiah midway through the second half.
Ben Sheaf pulled one back for the young Gunners just before full-time but time ran out as they searched for an equaliser.
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