Chelsea come from 2-0 down to beat 10-man Foxes
Preston beat Bournemouth after extra time - Makienok hat-trick
Perez scores twice as Arsenal thrash Forest
Liverpool ease through at Derby
Naismith scores as Norwich beat Everton 2-0
Marcin Wasilewski
You need to be fired up to defend against Diego Costa but Leicester defender Marcin Wasilewski gives it too much juice. He challenges for a bouncing ball, right in front of Antonio Conte in the technical area, but he leads with the arm and smashes Costa in the neck. It's a second booking. OFF.
Image source, ReutersLeicester 2-2 Chelsea
Excellent technique from David Luiz as he hits a side-footed punch of a fee-kick over the wall, but it's onto the roof of the net too. The last 20 minutes of this game have been superb.
Eden Hazard comes on.
Tomer Hemed (85 mins)
Nervy final five minutes for 10-man Reading and Jaap Stam.
The visitors fail to clear a ball into the area, which Glenn Murray hooks across the face of goal and Tomer Hemed fires in on the half-volley from close in.
Simon Makienok (85 mins)
Lightning strikes twice in Bournemouth as Preston's Simon Makienok nets his second of the night.
Cross from the right by Chris Humphrey and Makienok rose highest to glance a downward header past Adam Federici with five minutes to play.
Extra time at the Vitality Stadium?
Image source, ReutersChris Wood (85 mins)
A goal straight out of the footballing circus. A shot is saved, it's miscued back across the six-yard box, Chris Wood has a header saved, a poor header, straight at the keeper, but Wood is able to somehow scuff the loose ball over the line!
Leicester 2-2 Chelsea
When he's on it, he's on it. Diego Costa muscles two men off the ball, forces Ron-Robert Zieler into a good save, and then another one from the rebound from a tight angle.
This is the Brazilian at his bulldozing best...
Image source, ReutersLeicester 2-2 Chelsea
Diego Costa goes close with another low shot as Chelsea continue to push on. It's been a very entertaining second half at Leicester.
Nottingham Forest 0-3 Arsenal
Man with burger - send for the response team...
Image source, ReutersLeicester 2-2 Chelsea
Nathaniel Chalobah comes on for his Chelsea debut - 11 years after he joined the club as a boy. He seems to have been around for years...
Leicester 2-2 Chelsea
Leicester should really be ahead as Andy King somehow heads over the line from no more than three or four yards out!
Leicester send on the heavy artillery, on come both Leo Ulloa and Jamie Vardy.
Dan Gosling (76 mins)
Bournemouth have come from behind to take the lead against their Championship opponents.
Midfielder Dan Gosling pokes in a ball across the six-yard box from scorer of their equaliser Lewis Grabban.
Image source, Getty ImagesJosh Murphy (74 mins)
Wow, what a hit that is! Norwich double their lead in spectacular style as one of the Murphy twins, Josh, spins with his back to goal maybe 18 yards out, unleashes a left-footed strike that whizzes in off the underside of the bar!
Are Everton out?
Image source, Getty ImagesLeicester 2-2 Chelsea
It's a really entertaining game at Leicester as David Luiz gets under a high ball, Ahmed Musa skins Gary Cahill for pace and then tries to chip Asmir Begovic. The keeper hasn't been truly convincing tonight but that is a hell of a save! Proper fingertips...
Lucas Perez (71 mins)
It's two on the night for Arsenal striker Lucas Perez, as he is able to dribble in from the left, skip around the goalkeeper and then under heavy pressure bundle the ball over the line. Time for Nicklas Bendtner to tune up at the other end.
Image source, ReutersEverton 0-1 Norwich
Big chance for Everton and for Enner Valencia in particular. He is clear in the box to fire what should be a full debut goal and a Toffee's equaliser but somehow he picks out Alex Pritchard on the line and the ball flies off the midfielder and wide.
Leicester 2-2 Chelsea
Well he makes an instant impact, as Diego Costa comes within inches of finding the net. Not for the first time tonight it's a peach of a pass from halfway from David Luiz, a bit of check side on it to bring the ball back into the path of Costa, he chests the ball past the last man but as Ron-Robert Zieler charges out he can only toe-poke the shot wide.
Leicester 2-2 Chelsea
Gerry Taggart
Former Northern Ireland on BBC Radio 5 live
During the warm-up before the start of the match the keeper wasn't in goal it was Diego Costa - he went in and took shots. He wasn't with the rest of the players. Maybe that's the way Chelsea do things - but that's news to me.
Nottingham Forest 0-2 Arsenal
Just your average pitch invasion - a fan tries to give Arsene Wenger a burger...
Image source, Getty ImagesLeicester 2-2 Chelsea
What a save! Ron-Robert Zieler extended to full stretch to tip away a rasper from Michy Batshuayi from all of 22 yards. The Belgian controlled the ball brilliantly there.
Leicester 2-2 Chelsea
Diego Costa is on, Antonio Conte doesn't fancy extra time. The big man is on in place of Ruben Loftus-Cheek.