There was a riot in South West London today.

And no, not the car burning, brick lobbing, police on horse back kind of riot - although it might as well have been - it was the type of riot that silenced a city.

Manchester will be a quiet place this evening following what was a calamitous Sunday for United and Jose Mourinho, as the Portuguese manager's long awaited return to Stamford Bridge ended in a 4-0 drubbing from a rampant Chelsea.

Pedro opened the scoring for the hosts within 33 seconds, as the Spaniard capitalised on some awful United defending - a trait that would stick with them for the next 90 minutes - and Gary Cahill made it 2-0 before the break as he thrashed home from a corner.

Eden Hazard added a classy third with a trademark finish into the bottom corner before none other than N'Golo Kante - who ran £90million Paul Pogba ragged all afternoon - completed the scoring to ensure all three points for the home side and grab himself his first Chelsea goal.

The victory took Antonio Conte's men to within a point of the Premier League leaders Manchester City and piled further misery on an angry Jose Mourinho, who has had a difficult start to life in Manchester.

These are the five things we learned from today's game...

Kante the Key

The little Frenchman was absolutely fantastic.

The former Leicester City midfielder completely controlled the game as he ran tirelessly back and forth, clearing up at the back whilst offering the forwards much needed support. To call him a defensive midfielder would almost be an injustice considering the amount of ground he covers.

Kante made Paul Pogba look bang average in the middle of the park and his importance to Chelsea is becoming more and more apparent each week.

This isn't Ligue 1

Anybody wonder why Zlatan Ibrahimovic isn't setting the league alight like many thought he would?

One, he lacks the right support around him. Two, he is getting on a bit. Three - and most importantly - this isn't Ligue 1.

The Swede needs to understand he's playing a different ball game now in the Premier League, as opposition will not roll over and let him run riot as they may have done in France.

Back Three's a Winner

Two games with a back three and two emphatic wins. More impressive than that, though, is that Chelsea have scored seven goals now whilst using that formation and conceded nout.

A back three is a liability, they say. Well it certainly isn't under Antonio Conte, who seems to have mastered the set-up during his previous spells as manager of both Juventus and Italy.

David Luiz is finally looking the player he promised he could be and Gary Cahill has re-discovered his form of years gone by. Add in Cesar Azpilicueta to that and you have the making of formidable back three.

Mourinho Not So Special

It may not be entirely his fault, but once you have dubbed yourself the 'Special One', you are unfortunately going to invite criticism on yourself, especially when you aren't doing well.

Mourinho currently has amounted five less points than the much criticised Louis van Gaal had done at this same point last year, and the club's master plan of spending outrageous money on four big players and a manager doesn't seem to be working.

Mourinho is undoubtedly a talented manager, but not even he can turn a club around who's troubles lie deeper than merely the surface.

Conte Going Nowhere

Rumours were flying around that Antonio Conte was set to leave Chelsea a couple weeks ago after a string of 'bad' results.

What was totally apparent today, though, was that the eccentric Italian is loving every minute of it - no matter how much it may wind Jose Mourinho up - and the Chelsea fans clearly adore him.

The former Juve man is the figure the Bridge has craved for so many years, with his passion and energy bringing a fresh lease of life to South West London.