Meanwhile, Danny Drinkwater has a dink from 20 yards for Leicester, but it rifles wide.

So then.

Did Nathaniel Chalobah mean that backheel?

What do you HONESTLY think?

Pat Nevin
Ex-Chelsea winger on BBC Radio 5 live at Stamford Bridge

A goal deserving of this game. It's been an incredibly open match.

Remember what we have said about Italian managers in the past? It hasn't been the case at all because this is as open game as you're likely to see today.

And If that was deliberate by Nathaniel Chalobah in the build-up to the goal then you have to say it's a piece of brilliance.

Image source, PA

Bob Moss: Leicester playing dangerous game concentrating on Champions League, may end up in Championship.  

Matt Elliott
Former Leicester City captain for BBC Radio Leicester

Well you feel it was about to happen at some stage. It was all a little bit too easy...

It was an emphatic finish in what has been an emphatic Chelsea performance from start to finish today. 

Very strong, very composed. This has been the most comprehensive win I've seen so far against Leicester this season. 

And with the game wrapped up, Chelsea make a pair of changes.

Victor Moses and Eden Hazard make way for Ruben Loftes-Cheek and Ola Aina, who makes his Premier League debut.

Here's something you don't see regularly - Nemanja Matic skipping through a defence like a newborn lamb.

He avoids a series of tackles on the edge of the Leicester area and his shot wrong-foots Kasper Schmeichel, who recovers to touch it around the post.

Chelsea striker Diego Costa is one booking away from a suspension, so would miss the Manchester United game next week if he gets a yellow card.

Maybe that's why he was having a pop at the bench - even he can't trust himself to not get booked in the last 15 minutes.

Image source, Reuters

Ian Stringer
BBC Radio Leicester Foxes commentator

It's interesting being this close to Claudio Ranieri here at Stamford Bridge. 

There is frustration on his face as he looks to the sky - perhaps at the footballing gods?

Image source, Getty Images

Jonathan Meres: Blimey. Tom Waits' Swordfishtrombones album getting name checked on @bbc5live just now by @PatNevin #InTheNeighbourhood

Yeah, that's niche.

El Capitano in York: What odds on Leicester winning Champion League and getting relegated in same season? 5000-1 by any chance?

I'd give you 6,000-1 - I'm feeling generous.

Image source, PA

Final change for Leicester as Andy King replaces Marc Albrighton.

The inevitable almost happened - N'Golo Kante almost scored against his former club.

The Frenchman wins the ball and gives to Diego Costa, who pulls it back from the by-line, and Konta's low shot is brilliantly blocked by the outstretched foot of Wes Morgan.

Matt Elliott
Former Leicester City captain for BBC Radio Leicester

Chelsea still a threat but first and foremost, their priority is hanging onto this lead.

N'Golo Kante wins a trademark midfield battle and finds Chelsea team-mate Diego Costa.

Costa looks so sharp as he drives forward, gives it to Eden Hazard, receives it back and can't make room for a shot.

And now the Spaniard is having a right go at the Chelsea bench - it looks like he wants to come off.

Image source, AFP

This is Nathaniel Chalobah's third Chelsea appearance, having had loan spells at six different clubs.

And Chelsea make a switch too with Pedro being replaced by Nathaniel Chalobah.

Good shift from Pedro.

Image source, AFP

Leicester are bringing out the big guns, looking to capitalise on their momentum.

Riyad Mahrez and Islam Slimani are coming on - off go Ahmed Musa and Jeffrey Schlupp.

It's almost a role reversal this half as Chelsea sit deep in their own penalty box and allow Leicester to try and work a way through.

And they almost do as David Luiz prods the ball against his own post from a Marc Albrighton cross.