Chelsea made sure that cliche game of two halves grew legs on as they marched on in the EFL Cup.

2-0 down and going into the last minute against Leicester, Gary Cahill pulled one back on the stroke of half time to renew hope.

In fact, Blues had already missed a couple of decent chances, before subs Diego Costa and Eden Hazard came off the bench. The former missed by a whisker to win it, but by then, that rare hen's tooth of a Cesar Azpilicueta goal had drawn Blues level.

He measured his right-foot shot from the edge of the box and it flew past Ron-Robert Zieler for 2-2.

It was a first goal for the defender since January, and from there on out, it was the team in black who called the shots.

Cesc Fabregas scored a cracker a minute into extra time, and his second was rifled into the net from the six yard box to shoot Foxes out of the competition.

In truth, Chelsea's defence was sloppy in the first half, and two mistakes brought a brace for Shinji Okazaki.

But although Blues rectified the mess, the major turning point was a second yellow card for Marcin Wasilewski when he forearmed Diego Costa in the 89th minute.

Leicester down to 10 men, and with Chelsea in full stride - there was only going to be one winner

OK, that's it for a pulsating night

But be sure to log on tomorrow for all the post-match reaction to a great win in Leicester for Chelsea!

Quick correction - Fabregas scores a double

...and not Eden Hazard for the third. It was all happening in those first few seconds of extra time.

RESULT: Leicester City 2-4 Chelsea (aet, score at 90 minutes 2-2)

Chelsea come back from 2-0 down to coast home against 10-man Leicester. But it needs second-half subs and a bit of class to get through.

Round-up coming next.

Key moment

Thumbs up, and in:Cesar Azpilicueta scores for 2-2
Thumbs up, and in:Cesar Azpilicueta scores for 2-2

This is when Chelsea knew they were back with a bang. And what a hit! Cesar Azpilicueta gave the ball a right leathering to score

Still time for David Luiz to pick up a caution

The man with the mop gets the wrong side of Vardy and sends the England striker tumbling to the turf.

Fab Fabregas

Does he look relieved or elated?

Half time of extra time - Leicester 2-2 Chelsea

The action has abated a bit.

Blues are coasting, and the subs have made a heck of a difference. It’s easy to see why Diego Costa and Eden Hazard write their name on first-team sheets week in, week out.

Who said the EFL cup was boring?

Let’s see; we’ve had six goals, four yellows, a red card, and a Chelsea comeback from 2-0 down.

Those who paid are also getting an extra half hour for their money.

But the next Leicester train back to London is 4.45am tomorrow morning! I hope everyone in blue has a car or a lift.

This might seem a while back

How close? About a lick of paint for Diego Costa
How close? About a lick of paint for Diego Costa

....but this was how close Diego Costa was to ending it in normal time. It passes the post by no more than a foot.

Goal! And Chelsea are on their way to the fourth round

Leicester 2-4 Chelsea

The loose ball falls to Fabregas on the six yard box and he hammers it into the back of the net.

No way back now

GOAL!!!! Leicester 2-3 Chelsea

Blues lead for the first time. It’s a great team goal that ends with Eden Hazard rifling home. Had it come a minute earlier, they wouldn’t have to play the next 29.

FULL-TIME Leicester 2-2 Chelsea - it's 30 minutes more

This game exploded in the second half. Two Chelsea goals, a heap of yellows, all subs used, and a red card for Leicester.

Will it go to penalties? City will have to defend for their lives

Final throw for Leicester too

SUBSTITUTION

Gray makes way for Amartey in the first minute of added time.

Leicester will finish the match with 10

Wasilewski leads with a forearm into the face of Diego Costa - and deservedly gets a second yellow card.

It’s all happening here, but it looks set for extra time

Chelsea sub - and the last throw of the dice

Pedro doesn’t look too happy with being called to the bench - but Eden Hazard is now on the pitch

The cards are piling up

Danny Drinkwater takes a swing at Diego’s shins.

It's a caution for Nemanja Matic

The Chelsea man goes into the book for a little dig at Gray

Chelsea sub

Time is up for Batshuayi. On comes...

Leicester subs to the power of two

Ulloa for Okazaki; Vardy for Ahmed Musa;

Diego Costa and Michy Batshuayi are oh, so close

Shoot: Michy Batshuayi takes aim
Shoot: Michy Batshuayi takes aim

Batshuayi brings a great save from Zieler who tips over, and then the sub is a coat of paint from slotting home at the far post.

On another night, that would have been a goal.

It's time for the sharp shooters

SUBSTITUTION;

Diego Costa on for Ruben Loftus-Cheek, but Jamie Vardy is also warming up.

A chance to have a second look as Gary Cahill pulls one back

One back: Gary Cahill scores
One back: Gary Cahill scores

This goal, scored when it was, could prove crucial. It’s still Leicester 2-2 Chelsea

The first caution of the night goes to Leicester

Yessss!!! Leicester 2-2 Chelsea

Azpilicueta takes aim right-footed and thumps the back of the net from outside of the box - it’s hist first goal since January and it couldn’t have come at a better time

We're off in the second half. Come on, Blues!

Leicester 2-1 Chelsea

Cesc Fabregas tries a curler inside 10 seconds of the restart - but it’s comfortably gathered.

A second look at the Blues goal suggests...

...that maybe Luiz’s big mop and a brave attempted header were the real scorers of Chelsea’s strike just before half time.

It’s all about being in the right place at the right time.

HALF TIME: Leicester 2-1 Chelsea

What a lifeline!

Cahill’s header was the last action of the first half.

It should go on to sour a wasteful Blues who should have done better with first-half chances. Leicester aim twice on target - and score with them both. That’s not to say the home team hasn’t deserved the slender lead.

No doubt Conte will wait a bit longer before he brings on the big guns.

GOAL: It's one back for Blues!

Leicester 2-1 Chelsea

Gary Cahill loses Wes Morgan at the back post. It looks as if the ball had crossed the line anyway from Cahill’s header, but Luiz is on the line to make sure.

Every picture tells a story

Feeling the pinch: Antonio Conte (L) and Claudio Ranieri
Feeling the pinch: Antonio Conte (L) and Claudio Ranieri

If you had just arrived from Pluto - you would know which side was winning.

Oh no! Leicester 2-0 Chelsea

This is looking bad already.

Okazaki gets in behind again, stabs down into the ground and over Begovic. Again it crosses the line before it can be hacked clear.