It was obvious at that point that Ramsdale pass was eventually going to turn into a goal for Southampton as it was inevitable it was going to turn out to be a Mistake pass.
Who passes to his Defender when being pressured? Even the great Buffon would not dream of making that move.
Well thanks for the brilliance that Star Arsenal Defender Benjamin white possessed at that point to turn that pressured ball into an exquisite Tiki taka move.
At the end of the whole passing Arsenal forward Bukayo Saka was able to find Alexandre Lacazette who brilliantly got the ball into the net that was guarded helplessly by the Southampton goalkeeper.