Josh Sargent is on for City and he almost does make it interesting with a low shot that dribbles across goal and just wide.

Chelsea

Chelsea forward Timo Werner on BBC One: "Cup games are always difficult games especially away against a second division team who did very well today and gave everything, in the end we were the better team and won.

"In total, I am happy I made my goal, made an assist and I try to help the team as much as I can to win the game. Everything good.

"Very good ball from Ruben Loftus-Cheek, first touch was OK and I had a bit of luck it went against the post and in.

"We had a cup final today too and both of the games were difficult to play and after losing on Sunday we wanted to show we want to go into the next final. It was hard work but we won."

Any chance of the Canaries making this interesting?

SAVE!

The corner comes in and Craig Dawson meets it. It looks certain to hot the back of the net until Willy Caballero flings himself to his left to push it away.

Not bad for a man in his fifth decade.

West Ham have a corner. Two minutes remain.

Ibrahima Diallo has been asking for bother all game. He is robbed of the ball by Declan Rice and has to haul the midfielder down to stop him breaking into Saints territory. A yellow card all night long.

Super save!

Nathan Redmond cuts inside and unleashes what he must think is a match-winning strike. But Alphonse Areola dives to his right to claw the shot wide.

All over!

Romelu Lukaku is the match winner as Chelsea come from behind to beat Championship side Luton and reach the quarter-finals of the FA Cup.

Remember Kidderminster? West Ham are edging toward needing another rescue act like that.

A scramble in the Chelsea box, Malang Sarr falls over but the flag is up anyway.

60 seconds to go...

Broja is a tough lad. He is quickly back up and back into the action.

Matthew Upson
Former England defender on BBC One

The referee has had a good game, allowed it to flow.

And now Armando Broja is down holding his head. And with good reason. It looks like Ben Johnson has just sent a jab into his face. You can only assume it was accidental, otherwise it was a moment of utter madness from the West Ham player.

Just three minutes for Luton to rescue the tie.

Tomas Soucek is back on the West Ham bench, sporting an awful-looking wound around his right eye. Hope it's not school photo day tomorrow.

Matthew Upson
Former England defender on BBC One

That was a rugby tackle from Hilton. He was really keen to pressure Kepa, but follows through and catches him with a forearm. Luton have to apply tha pressure when they are looking for a mistake or a loose touch.

Saints send on Nathan Redmond for the impressive Will Smallbone.

We're into the last 10 minutes.

Kepa Arrizabalaga leaves it late to punt a ball up the field and Danny Hylton comes in and barges the Chelsea understudy over.

That's not allowed in rugby league, never mind here.

Here is the goal that briefly gave West Ham parity in the tie. They'll need another of these or they are out.