As Isak exhibited his brilliance, the Gunners were brutally mocked on social media.
On X, Mark Douglas wrote: "Isak scores (just)! Not his best penalty but does enough. #nufc turned this round superbly. The 49th goal of his loan spell from Arsenal."
An X handle named Matt wrote: "Isak would take us to another level if we could persuade Arsenal to sell to a rival."
Maria wrote on X: "Why the hell didnt arsenal go for Isak in the summer I feel so sick !!!!"
A handle named Jason claimed Arsenal could have benefited from having the Swedish striker in their team against the Hammers as he wrote: "Arsenal could have done with Isak yesterday."
A handle named Gomotsang wrote: "Isn’t Isak playing for the wrong team I thought his an Arsenal player."