- Arsenal beat their north London rivals in league for the first time since 2014.
- Shkodran Mustafi headed his side into the lead after 35 minutes.
- Alexis Sanchez doubled the lead five minutes from half-time from close range,
- Eric Dier drops into a back three to replace the injured Toby Alderweireld.
- Arsenal move to within a point of their arch-rivals.
Arsenal are still a point behind their arch-rivals in the Premier League, but they have secured a hugely convincing win over Tottenham at the Emirates this afternoon. With Harry Kane and Dele Alli not at it today, the Gunners turned in their best performance of the season, with Mesut Ozil in particular having an inspired day at the office.
Full-time: Arsenal 2-0 Tottenham Hotspur
Alexis almost creeps in for a third, latching onto a big long ball over the top, but Davinson Sanchez again does well to put his man under pressure with the eventual shot saved by Lloris.
There is a strong case for Sanchez being Tottenham's best player this afternoon; despite the score line.
Four minutes of time added on at the Emirates.
Ramsey dummies and allows Xhaka to try his luck from a considerable way out, but his effort bounces well clear of Lloris' post.
We are approaching the 90th minute and Arsenal have a free kick from a good 35 yards out.
Tottenham's best chance of the game? Llorente wins a crucial knock on to find Son just inside the box but leaning back, he loops a poor effort well over Cech's cross bar.
Arsenal waste an opportunity to pounce on the counter for a third and the resulting break in play allows Wenger to make his final change with Alex Iwobi on for Ozil, who leaves the pitch to a tremendous ovation.
Cech is forced into action, palming away Dier's header back across goal with Llorente lurking in the six yard area.
Just over 10 minutes left in this contest and Arsenal are happy to sit back and try pounce on the counter. Harry Winks is finding less and less space now following the introduction of Coquelin.
Arsene Wenger decides to replace Lacazette with Francis Coquelin, a decision that prompts a few boos from around the Emirates. Those are quickly replaced by loud 'WHEEEYYYY's as both Kane and Alli are hauled off for Tottenham, with Heung-min Son and Fernando Llorente on for the pair.
Spurs for a split second think they are away on the counter when Sanchez loses the ball with plenty of Arsenal players upfield, but Mike Dean gives the free kick Arsenal's way, with replays suggesting the Chile international did get a kick from Trippier.
Already Winks' impact can be seen, finding those little gaps in the Arsenal midfield. Francis Coquelin incoming, perhaps?
Eriksen hammered three past Ireland midweek but is range is off today, firing a wild effort well away from the target after coming in from the right.
Tottenham have missed Harry Winks today and Mauricio Pochettino will turn to the young midfielder for the final half an hour of this contest; he is onto replace Dembele.
Arsenal's back three again proves to be impervious, with Mustafi and Koscielny both coming in to intercept an attempted through ball to again frustrate Alli.
Kane goes down in the box, believing he was bundled over by Koscielny. Play is waved on however and Spurs get on with it, winning the ball high up the field again with Eriksen sliding a pass onto Kane inside the box. Just as he is about to pull the trigger, however, Mustafi slides across with a goal-saving sliding challenge.
Slick stuff again from Arsenal as they free Lacazette, whose excellent movement again finds him in space down the middle. Davinson Sanchez reacts well however, getting across to hoof the ball clear.
Xhaka allows the ball to roll out of play having won a duel with Alli but Kane slides through the back of him anyway with no intention of winning the ball. Yellow card for the Spurs striker.
Tottenham are looking slightly more lively, winning the ball higher up the pitch with Dembele bursting down the inside left before floating a ball into the box. It's a difficult one, but Kane is nowhere near getting it on target.
Kane does well to shield the ball from Mustafi and turn away from the Arsenal defender, who sticks out a leg to try and nudge the ball away from the Spurs striker. He gets a toe to it, but Mike Dean awards the free kick after coming through the side of Kane.
And we are back underway for the second half at the Emirates.
Mustafi's towering header gave Arsenal a deserved lead and things only got better from there.
Half-time: Arsenal 2-0 Tottenham