Home side are now 16 points clear at top of league
Third hat-trick of season for Aguero
Watch it on MOTD - 22:30 GMT on BBC One (00:00 GMT in Scotland)
Mahrez comes off bench for Leicester
Sergio Aguero
The best of the bunch!
When Sergio Aguero is on fire, he is on fire as he completes a stunning 45 minutes with his fourth and Manchester City's fifth.
The ball is worked to the striker on the edge of the area and he thumps an effort over Kasper Schmeichel, off the underside of the bar and into the net.
Simply brilliant.
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Andy: Looks like Man City don't need Riyad Mahrez after all!
David Mitchell: Competitive football - the heart of the game - is dead. This Man City team will dominate for years and as a neutral it's depressing to see.
Rajeev: Give Man City the title and Kevin De Bruyne the Ballon d'Or already.
Image source, ReutersMan City 4-1 Leicester
Leicester need to work on their free-kicks. They've got another opportunity to make something happen from a fairly dangerous position - on the left level with the area - but Riyad Mahrez plays it short to the edge of the box, the City players charge out, Leicester panic and in the end can only manage a meek cross straight into Ederson's hands.
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Anon: Kasper Schmeichel seriously, you are not Ederson. After this performance please do not think that you ever can be. Atrocious.
Rodders: Looks like Man City will be lifting the Premier League trophy before the end of March.
Image source, AFPMan City 4-1 Leicester
Leicester City look a beaten side as Manchester City go the attack again.
Sergio Aguero works the ball out wide to Raheem Sterling, but he is flagged offside.
Man City 4-1 Leicester
Simon Stone
BBC Sport
Sergio Aguero is having a pretty good 2018 so far.
The City striker has played in 10 games, scored in seven and racked up 12 goals, including two hat-tricks.
That is some strike rate.
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Liz Tray: There is nobody sharper when he smells blood - his third hat-trick of the season. Sergio Aguero is surely the greatest Premier League striker of the last 20 years.
Big, big call from Liz...
Man City 4-1 Leicester
Paul Dickov
Former Manchester City striker on BBC Radio Manchester
I’ve played against possession based sides, like the great Arsenal side and it’s so disheartening because you’re so tired at the end of the game, but you can’t get the ball.
Man City 4-1 Leicester
And another player makes his return as John Stones, who missed the last two games through injury, replaces Nicolas Otamendi.
Man City 4-1 Leicester
Paul Dickov
Former Manchester City striker on BBC Radio Manchester
What a great finish by Sergio Aguero, but Kasper Schmeichel has had a shocker.
Not sure what he’s trying to do? Just put your foot through it. Maybe he’s seen Ederson up the other end and thought he can do the same.
Man City 4-1 Leicester
The win safe, Pep Guardiola decides to give Fernandinho a breather and Phil Foden some important minutes on the pitch.
Foden is on for the first time injuring his ankle in December.
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Brandon Graft: The Man City players are like automated robots, every pass is pin-pointed. Absolutely stunning. Kudos to Pep Guardiola.
Anon: Man City on a roll. They look unstoppable.
Sergio Aguero
Beautiful finish!
Terrible goalkeeping.
Kasper Schmeichel attempts to pass the ball out to his defence but hits it far too close to Sergio Aguero and the striker intercepts and then cleverly chips it over the panicking Schmeichel to complete his hat-trick.
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Andersen: RE: Will at 6.50pm: Is Ronaldo really better than Kevin De Bruyne at the moment? I don't think I'd pick anyone over De Bruyne on current form.
Man City 3-1 Leicester
... Marc Albrighton clips the ball towards the far post but it is slightly overhit. Harry Maguire does well to keep the ball alive, but then slices harmlessly what I think was a cross into the sidenetting. A wasted opportunity.
Man City 3-1 Leicester
Ilkay Gundogan practically wrestles Riyad Mahrez to the floor as he attempts to prevent the Leicester man from charging towards goal. Gundogan is booked and Leicester have a free-kick in a shooting position...
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Jack: Judging goalkeepers on their distribution is in vogue. Kasper Schmeichel’s is woeful.
Jim: Every game you see people trying to pick holes in Manchester City or say that Pep Guardiola is not all that. Crazy really since the table tells its own story.
Man City 3-1 Leicester
Bernardo Silva steps inside Christian Fuchs before letting fly from just inside the area. Over, but not by much.
Man City 3-1 Leicester
Raheem Sterling gives the ball away and Leicester City have the chance to make something happen as the ball is worked quickly to Jamie Vardy. He finds Riyad Mahrez on the right and the winger passes to Matty James, who loses the ball and the opportunity for Leicester.
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Cameron: As a Chelsea fan, every time I see De Bruyne play, I weep uncontrollably.
Gozzy: Why did Chelsea get rid of De Bruyne? Big mistake.
Image source, Reuters