Pierre-Emerick Aubameyang’s effort was not enough for Arsenal as Brighton and Hove Albion dented their top-four hopes after a 1-1 draw in Sunday’s Premier League fixture.
Aubameyang put Unai Emery’s side ahead after converting his effort from the penalty spot in the ninth minute.
The penalty stretched his tally to 20 goals in 35 league outings for the Emirates Stadium outfit this season.
Glenn Murray’s leveller from the spot in the 61st minute earned a point for Chris Hughton's men in North London.
Alex Iwobi was later introduced for Granit Xhaka in the 77th minute but his contribution was not enough to seal maximum points for the hosts.