Arsenal goalkeeper David Raya had a moment to forget in his side's Champions League clash with Lens after gifting the host a crucial equalising goal.
The Gunners took the lead in their Champions League group stage clash through Brazilian striker Gabriel Jesus' strike in the 13th minute of the match.
However, the lead for Mikel Arteta's side was short-lived with the hosts hitting back in the 25th minute thanks to a curling effort from Adrien Thomasson.
The opportunity stemmed from an error by the Gunners' Spanish goalkeeper, who looked to fire a pass out to full-back Takehiro Tomiyasu.