The Gunners remain on course for a record 13th cup triumph.
The Gunners capitulated again in the second-half.
The Gunners suffer a sixth loss in nine games.
ENGLAND new boys James Ward-Prowse and Nathan Redmond have been held up as shining examples of Saints’ dedication to youth by proud team-mate Oriol Romeu.
The West Ham midfielder sustained the problem during the defeat to Leicester.
England’s record scorer was not included in Gareth Southgate’s 26-man group for the games with Germany and Lithuania.
He enjoyed a spell on the big stage.
The Wales midfielder netted during the 5-0 rout of the non-league outfit.
The manager has come under increasing pressure after the Gunners crashed out of the Champions League.