Blues go through 5-3 in penalty shoot-out
Pedro & Alvaro Morata see red in extra-time
Willian has extra-time penalty call turned down by referee
Wigan shock Bournemouth & Swansea beat Wolves
Chelsea 1-1 Norwich
Phil Neville
Former England & Man Utd defender on BBC Radio 5 live
What a double save from Angus Gunn! We've raved about him all night.
The first one with the wrist was so strong. He parried it out over everybody.
He's an impressive young player.
Chelsea 1-1 Norwich
Half time in extra time.
Chelsea 1-1 Norwich
Brilliant save by Angus Gunn to deny Willian from close range.
Whatever happens tonight, Gunn has won a few admirers. He's been excellent tonight.
Chelsea 1-1 Norwich
A cheeky rabona by Wes Hoolahan - you don't say that often - right on the edge of the Chelsea area. Looks nice, comes to nothing as Chelsea clear.
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Before VAR came in people complained that it would take the drama out of football, now that it's here people are complaining that its not good enough at clearing things up. People just like to complain.
Tom, Swansea
Chelsea 1-1 Norwich
Jermaine Jenas
Former Tottenham midfielder on BBC One
Norwich had to expect Eden Hazard's introduction at some point - everyone knows what he brings to the table - Chelsea will hope he can be the difference for them.
Image source, ReutersChelsea 1-1 Norwich
You can make a fourth substitution in extra time in the FA Cup these days so on comes Eden Hazard to race at tired legs. He replaces Danny Drinkwater.
Chelsea 1-1 Norwich
Now Norwich come forward as David Luiz superbly cuts out Tod Cantwell's dangerous low cross.
End-to-end.
Chelsea 1-1 Norwich
Tired challenge by James Maddison as he brings down N'Golo Kante as the midfielder threatened to break forward. The Norwich midfielder is booked as a result.
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Sophie: Stop banging on about the penalty! The ref is in charge not you
Chris Faz: Earlier VAR confirms that a corner was the correct decision but when it comes to a penalty shout they decide not to use it. Brilliant.
Chelsea 1-1 Norwich
Now Alvaro Morata wants VAR. He does the TV shape with his hands as he tumbles under a challenge by Timm Klose inside the area, no penalty given.
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Will Sawyer: So what’s the point in VAR again??
Garry Jones: What is the point of VAR of it's not going to be used properly?
Chelsea 1-1 Norwich
Phil Neville
Former England & Man Utd defender on BBC Radio 5 live
That's a penalty. There's a clip. It's got to be a pen.
He went down because there was a clip. Why have it (VAR) if he hasn't referred it?
Use it Graham Scott, to get decisions like that right. If you don't use it, get rid of it.
Chelsea 1-1 Norwich
Willian is booked after being deemed to have dived.
The replays show that there's contact, quite confused why that has not gone to VAR.
But, we play on.
Chelsea 1-1 Norwich
Jermaine Jenas
Former Tottenham midfielder on BBC One
That's a definite penalty. There's definitely contact from Timm Klose on Willian - you can see the contact.
Chelsea 1-1 Norwich
Willian goes down inside the area, the referee blows his whistle... and gives a free kick to Norwich.
Looked like a foul to me, is this going to go to VAR?
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Christopher Stanley: Fair play #Norwich, external, what a time to score! Deservedly forcing extra time aginst #Chelsea, external
Lee Kibbey: Conte has the look of a man who knows he's lost the dressing room.
Rob Hosking: Lewis has had a good game & deserved that goal for his work rate, alon
Chelsea 1-1 Norwich
Right, let's crack on.
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David Allen: Pleased for Norwich but another 30 minutes? Zzz.
Lee Kibbey: Conte has the look of a man who knows he's lost the dressing room.
Chelsea 1-1 Norwich
Phil Neville
Former England & Man Utd defender on BBC Radio 5 live
What a cross into the box from the centre back Klose, he whipped it into the box.
Jamal Lewis, who has been up and down this left hand side, has glanced it over the head of Caballero.
It was a brilliant header from the fullback.
Disaster for Chelsea. Conte looks gutted.