Arsenal head coach Unai Emery has been speaking after his side’s dramatic 4-2 victory over bitter rivals Spurs in the North London derby at the Emirates on Sunday.

The deserved triumph came after a brace from Pierre-Emerick Aubemeyang supplemented by goals from Alexander Lacazette and Lucas Torreira pulled back a deficit at the break following an Eric Dier header and a Harry Kane penalty put the Lillywhites 2-1 ahead.

To cap a miserable day for Spurs Jan Vertonghen was correctly sent off late on for catching Aubameyang’s foot in a reckless challenge as North London, once again became red.

However when asked if beating Arsenal’s bitter rivals from the other end of the Seven Sisters Road was his best moment since becoming boss of the North London giants, modest Emery did not agree.

He replied: “The best day is when I signed [as Arsenal head coach]. It is a very special victory to give our supporters.

“We are happy and enjoying [ourselves].”

Emery is fast gaining a reputation as a master tactician not afraid to make big decisions at half-time in a bid to win games.

With Arsenal 2-1 down at the interval and Spurs with the momentum going into the second period Emery replaced the underperforming Alex Iwobi and Henrikh Mkhitaryan during the interval, replacing them with Alexandre Lacazette and Aaron Ramsey.

The switch proved to be a masterstroke as Lacazette grabbed the crucial third goal while Ramsey notched an assist.

Emery explained his thinking, saying: “Lacazette has very big ambitions scoring against ever team and because Aaron has experience against Tottenham, he has experience that we can come back in the 90 minutes.

“These were the reasons [I made the half-time substitutions].

Arsenal travel to Old Trafford on Wednesday evening as they bid to extend their unbeaten run to 20 games in all competitions.