Ex-Tottenham midfielder Danny Murphy reflected on his former team's display at Arsenal:
"That was as dominant an Arsenal performance against Tottenham as I've seen for a long time. There was a massive gulf between the two teams.
"The Tottenham system with five at the back - be it a 3-4-3 or 5-4-1- can cause the other team problems if, when got the ball, they are brave enough to push wing-backs up a bit higher and get up the pitch to support the front three.
"But Arsenal's quality and physicality just pinned Spurs back. And of course after the second goal, which they felt a little bit harshly done by because of the men in front of the keeper, Spurs were then in a real predicament.
"If they came out and really went after Arsenal, they would have got cut to pieces but also 2-0 was a mountain to climb because the Gunners do not concede many.
"But they will be hugely disappointed - they didn't really lay a glove on Arsenal. Afer the first 20 minutes, they could have been braver, because they had given themselves a platform to do that.
"It is a huge disappointment for Tottenham to lose any north London derby but to lose it in the manner they did was very poor.
"They got completely overrun in the end really - outplayed and out-worked and didn't really hurt Arsenal enough.
"There was already a little bit of discontent at their home games. Now, because of that performance, that's going to grow. The players are going to have to stand up and be counted and Frank is going to learn a lot about his players in the next couple of weeks.
"He is going to learn who is up for it, who has got some courage and who wants to get on the ball and make things happen."