Postpublished at 21:33 Greenwich Mean Time 27 January 2015
Steven Gerrard whips it in, but it's headed clear. Eden Hazard picks up the loose ball, but can't prevent Jordan Henderson winning a corner.
Ivanovic heads winner from free-kick
Winners play Spurs or Sheff Utd in final
Absorbing and controversial tie
Marc Higginson
Steven Gerrard whips it in, but it's headed clear. Eden Hazard picks up the loose ball, but can't prevent Jordan Henderson winning a corner.
Another tidy backheel from Mario Balotelli sets Liverpool off and Raheem Sterling is brought down to the left of the box. Free-kick in a dangerous area...
BBC Radio 5 live Danny Mills at Stamford Bridge
"Sterling just snatched at that, and didn't really follow through. I think he's a player just lacking a little bit of confidence. Last season he would have bent that into the top corner, tonight he just smashed at it."
Raheem Sterling picks up the ball 40 yards out. Can he win it? He steps inside but balloons his shot over the bar.
Steven from Derby: My girlfriend just asked if I was watching Match of the Day because its just highlight after highlight!
Pete Cash:, external This is the most exciting 0-0 I've seen for a long time! Chelsea to win on away goals!
Mark Fowler:, external This has to be the best 0-0 game I've seen in the League Cup ever!!
The best 0-0 of the season so far?
BBC Radio 5 live
Tonight BBC Radio 5 live want to hear from you on their Football Social after the conclusion of this match. The questions they want you to weigh in on are these:
Should Diego Costa have been sent off?
And has Simon Mignolet turned a corner for Liverpool?
Call us now on 0500 909 693. Or text on 85058, or tweet @bbc5live.
Darren Bent has hit his second goal in three matches since joining Derby County, giving them a crucial lead against Blackburn.
That goal could move the Rams second, trailing Bournemouth on goal difference. Meanwhile, Liam Trotter and Matthew Mills have halved Bolton's deficit at Rotherham - 4-2.
In League One, MK Dons have levelled at Scunthorpe through Kyle McFadzean. A draw will leave Dons two points off top in third.
Diego Costa puts Chelsea back on the front foot, then gets himself on the end of the move to drill in a low shot which is straight at Glen Johnson. Cleared. Breathless stuff, still.
Great play from Liverpool as they help the ball across the face of the box via Mario Balotelli's backheel and Philippe Coutinho's pass but Steven Gerrard hooks his subsequent shot over the bar. A decent opening.
BBC Radio 5 live Danny Mills at Stamford Bridge
"It's been 100 miles per hour. It's like a traditional, old-style Premier League match."
Adam Bennet:, external Anyone remember the 4-4 at Stamford bridge in the Champions League six years ago? This is as end-to-end as that without the end product!
Eden Hazard dances down the left but runs into Emre Can and is brought down. Free-kick.
Before it is taken, Filipe Luis hobbles off to be replaced by Cesar Azpilicueta.
The free-kick is punted out of play by Oscar. Poor.
I think Brendan Rodgers is anticipating extra time now. He's dug out a fresh packet of chewing gum, and cracked it open. A long night ahead.
BBC Radio 5 live Danny Mills at Stamford Bridge
"John Terry always runs the risk. If you come in from behind with a challenge like that, even if you get the ball, if you get any part of the man in this day and age, it's a free-kick."
John Terry into the book for a strong tackle on Raheem Sterling.
North London Is Zed:, external This game is on a knife edge, needs a calm head. Bring Mario on.
Gary's right. But so have both teams - they given absolutely everything. This match would have graced the final - it's had everything. Apart from goals, of course.
Former England captain Gary Lineker
BBC Sport
"The two keepers have been outrageously brilliant."