The ratings were done by mirror.co.uk as they assessed the performance of each Arsenal player against the Saints, scoring them out of 10.
Iwobi, who returned to Arsenal first eleven after starting on the bench against CSKA Moscow in the Europa League last Thursday, was rated eight.
The Nigeria star put up an impressive display as he provided two assists for Arsenal’s second and third goals both scored by Danny Welbeck. He created three clear-cut chances overall.
Commenting on Iwobi’s dipslay, mirror.co.uk wrote: “Nervy start but recovered to claim two assists and help set up others.”
Two other Arsenal players who were rated eight are Pierre-emerick Aubameyang who scored the equaliser and Welbeck.
Arsenal player ratings in win against Southampton:
Petr Cech (6)
Hector Bellerin (7)
Callum Chambers (6)
Shkodran Mustafi (5)
Sead Kolasinac (6)
Mohamed Elneny (7)
Granit Xhaka (6)
Reiss Nelson (6)
Alex Iwobi (8)
Danny Welbeck (8)
Pierre-Emerick Aubameyang (8)