Tottenham will continue to rule north London after a comfortable 2-0 win over Arsenal.
Jose Mourinho watched on as his side perfectly executed their gameplan to return to the summit of the Premier League having briefly seen Chelsea usurp them.
Misery deepens for the Gunners who have won once in the league since early October.
The hosts took control of the contest thanks to a magic strike from Son Heung-min who curled the ball in from the best part of 25 yards.
He was sent clear by none other than Harry Kane and the South Korean duly repaid the favour to keep up the pair’s excellent run.
The Tottenham striker thundered the ball home with the help of the crossbar to become the top scorer in north London derbies.
Despite Arsenal improving in the second-half the hosts remain composed to continue their impressive run.
Here are five talking points from Sunday’s clash in the capital.
1. Oh so Mourinho
“This is not a team you want to go 1-0 down to,” Gary Neville said in commentary.
How many times will he have thought that over the years.
From Chelsea to Inter Milan to Real Madrid and then back again.
A Mourinho team is like a problem you know you’re going to face but still haven’t found the remedy for, even after the best part of 20 years.
Minus Tanguy Ndombele, who has been among Tottenham’s best performers this term, little changed despite the hugely contrasting Giovani Lo Celso coming in to replace him.
With each passing week Tottenham’s title hopes seem to grow.
They’ve gone from top four contenders to title challengers in a matter of months.
Jamie Redknapp also commented with amazement at how attacking players like Steven Bergwijn are prepared to sacrifice their ambition going forward if the team can continue winning.
After Son put them one goal up Mourinho turned to his assistant and stood in the image of Christ the Redeemer.
Tottenham languished in 14th place when the Special One took over, should he deliver the title in less than two years he will have done a little more than just save them.
2. Arsenal attackers culpable
The team from the red half of north London are in a rut – and a serious one at that.
Defeat at Tottenham means they have lost five of their last six league games.
Old Frailties seemed to return in the first-half and that brittleness that has stuck with Arsenal was again evident even against a side who were content to let them play.
In attack they don’t seem to be able to buy a goal with Pierre-Emerick Aubameyang’s form well beyond a concern and is threatening to become a full on crisis.
On more than one occasion Arsenal’s adventure got them into good positions, but a lack of a clinical edge cost them dearly with Alexandre Lacazette also far from his best.
Arsenal were considerably better in the second-half and dominated possession which led to several half chances.
Mikel Arteta will have a job on his hands analysing this one because his team did a lot right, but without an end product.
But nothing breeds confidence like winning and, despite some positives coming out of the second period, their problems deepen.
3. Harry and Heung
Last Sunday’s draw between Tottenham and Chelsea may have to go down as a special afternoon.
It didn’t involve a single combination between Kane and Son that resulted in a goal.
Other than that it seems to be a weekly occurance as the pair close in on the Premier League record of 36.
29 became 30 which then became 31 before half-time.
Son repaying the favour to Kane after the Englishman had set the South Korean clear before he bent in an excellent opener.
This season the duo have particularly struck it off and it plays into the Mourinho narrative.
Pick a team that is solid beyond belief from defence to midfield and trust that you have a quality player or two in attack who can combine to win you games.
Well Mourinho need not worry about having the latter.
4. Home comforts
The 2,000 fans inside the Tottenham Hotspur stadium couldn’t have timed their return better – and boy will they have enjoyed what they saw.
Tottenham are now unbeaten in their last seven league games on their own patch against their fiercest rivals.
In the two derbies at their new stadium they’ve ran out winners on each occasions and they must now have a club record in their sights.
Tottenham recorded a run of nine games without defeat against Arsenal between January 1960 and January 1968.
Now with Mourinho’s side only getting better and the Gunners seemingly regressing, what’s the betting on that run extending further.
That Tomas Rosicky winner at White Hart Lane in March 2014 must seem like a lifetime ago for Arsenal fans now.
5. Anyone for Son
His goal was world class and Neville claimed that the player is too.
The South Korean’s problem has always perhaps been that he’ll forever be compared to Kane.
But maybe its time to realise that Tottenham don’t have a world class striker and a very good one.
Instead they have two world class forwards.
“He’s world class,” said Neville. “You talk about players who would get in any side in the world – he’s one of them.”
On this season’s evidence it is a comment that you’d be hard pushed to rebuff.
Even as Kane continues to evolve as a player, dropping deeper to affect the game, Son seems to be improving at the same rate.
But Whilst he may be a fit for any team in the world, Daniel Levy will be hoping Son doesn’t want to test that theory.