Arsene Wenger’s side drop crucial points at St Mary’s.
Arsenal lost to a Southampton side occupying the fourth spot Arsene Wenger would dearly love to secure thanks chiefly to some shocking defending.
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Sadio Mane put the home side ahead just after the half hour mark after Wojciech Szczesny drifted off his line to allow the Saints attacker the chance to curl an effort into the net.
Poor defending on 56 minutes led to Dusan Tadic doubling Southampton’s lead and the frustration was clear to see when a fan, seemingly an Arsenal supporter, confronted Arsene Wenger on the bench.