The Reds legend was proud of the effort and determination of his team on Saturday, but frustrated that they were unable to produce the equaliser in extra-time that their overall play merited.
With 11 players making their Anfield debuts, Robbie Burton had fired the young Gunners into the lead with a deflected effort, but 16-year-old Scouser Curtis Jones turned the tie around with two strikes.
Gerrard’s charges were five minutes away from victory but substitute Bukayo Saka ran through to finish emphatically, and in the first period of extra-time the same player set up Tyreece John-Jules for a Kop-end winner.