Danny Welbeck scored twice as Arsenal deepened Southampton's relegation worries with a 3-2 win in a game that saw both sides reduced to 10 men in stoppage time at the Emirates Stadium.
After a scrappy start in rainy conditions, Southampton were the first to threaten -- and only Hector Bellerin denied them the opening goal.
Jack Stephens played a long pass to Dusan Tadic, who set up James Ward-Prowse and, although his strike beat Petr Cech, Bellerin was there to clear from almost on the line.
Tadic created more danger with a dangerous low cross that was scrambled behind by Shkodran Mustafi, and then Shane Long chased another long ball forward but failed to find Tadic with his attempted pass.