An Arsenal side featuring Hector Bellerin, Kieran Tierney and Konstantinos Mavropanos were denied victory and top spot by Wolverhampton Wanderers' stoppage-time equaliser in Premier League 2 Division 1.
The Gunners' first-team trio, who are completing their comebacks from injury, lined up in defence and Arsenal made a great start, taking the lead after 40 seconds through Folarin Balogun.
However, Bruno Jordan equalised with a near-post finish on 58 minutes.
And, although Balogun restored the Gunners' lead in the 69th minute, Wolves hit back again in stoppage time, with Taylor Perry equalising and Elliot Watt providing his second assist.
Arsenal remain in second, behind leaders Everton on goal difference. Wolves stay in sixth place on eight points.
See: Wolves report | Arsenal report
Next fixtures
Wolves: 27 Sep v Southampton (H)
Arsenal: 28 Sep v Liverpool (H)