Arsenal took the lead in the North London derby through an absolute screamer from Alexandre Lacazette.
A very poor first touch from Serge Aurieir allowed the ball to fall to Lacazette who still had some work to do but he made it look easy and blasted the ball beyond the stranded Hugo Lloris.
The game was fairly even to that point and in fact, Harry Kane had a very good opportunity himself to open the scoring a few minutes earlier.