Postpublished at 14:05 Greenwich Mean Time 5 February 2022
Chelsea 1-1 Plymouth
Plymouth have done really well to keep Chelsea at bay but have work to do now as the hosts have a free-kick in a dangerous position down the right.
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Chelsea beat Chesterfield in round three, while Plymouth knocked out Birmingham
Tuchel tests positive for Covid and misses tie
Plymouth are seventh in League One
Chelsea are eight-team winners, last in 2017-18
Plymouth's best FA Cup run saw them reach the semi-finals in 1983-84
Phil Dawkes and Shamoon Hafez
Chelsea 1-1 Plymouth
Plymouth have done really well to keep Chelsea at bay but have work to do now as the hosts have a free-kick in a dangerous position down the right.
Chelsea 1-1 Plymouth
Plymouth are "having a right go", says Matt Upson.
Too right, they are causing Chelsea a few issues at the back.
But Joe Edwards' eye light up when the ball breaks towards him on the edge of the area and he strikes his effort into the Shed End.
Kidderminster 1-0 West Ham
And now Declan Rice slashes a shot high and wide.
The Hammers are seeing lots of the ball, but there's not enough movement up top to find the very gaps available.
Peterborough v QPR (15:00 GMT)
There are five changes to Peterborough's starting XI from their 2-0 defeat to Sheffield United.
QPR have made three changes since their league victory over Reading.
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Kidderminster 1-0 West Ham
Dion Dublin
Former Aston Villa striker on BBC Match of the Day
To a man they have been outstanding, the opposite man in a West Ham shirt has come off second all over the pitch.
Declan Rice has tried to make things happen but there is no movement in front of him at all.
Chelsea 1-1 Plymouth
Ahh, it's a poor delivery and Kepa Arrizabalaga can grasp the ball unchallenged.
Kidderminster 1-0 West Ham
Chance!
West Ham keep the ball alive around the Kidderminster box but when it is swung in, Tomas Soucek hooks a shot over.
Fifteen minutes remain.
Chelsea 1-1 Plymouth
Plymouth are not lying down and Danny Mayor earns his side a corner.
Can they???
Chelsea 1-1 Plymouth
Ohhh what a stunning save from Michael Cooper, take a bow son.
It's much better from Romelu Lukaku, holding it up and laying it off for Mason Mount inside the area.
The England international takes a touch and lashes a rising drive which Cooper tips over the bar with a flying save.
Superb.
#bbcfootball or text to 81111
throwthepie: West Ham are looking a little Dazed and Confused
Chelsea 1-1 Plymouth
Plymouth are getting opportunities you know.
Sub Ryan Hardie times his run to perfection but Kepa Arrizabalaga comes out to narrow the angle and the shot is straight into his chest.
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Matthew Vins: Matt Preston is an absolute brick wall for Kidderminster. Winning everything in the air, blocking everything else.
Kidderminster 1-0 West Ham
Mark Carrington is replaced, with Lewis Montrose coming on. Straight swap in the centre of midfield for Kidderminster.
Chelsea 1-1 Plymouth
Chelsea skipper Cesar Azpilicueta is on the goal trail today.
The defender is in once more from Hakim Ziyech's perfect pass and the Spaniard draws a smart save out of Michael Cooper.
From the corner, Malang Sarr blasts over from eight yards out.
That was a good opening but it fell to the wrong man.
Kidderminster 1-0 West Ham
Twenty minutes to go.
#bbcfootball or text to 81111
It's a great day to be a Carpet Boy! Kiddy flying. So sad not to have been able to get tickets.
Beado, London
Kidderminster 1-0 West Ham
Matt Preston. Take a bow. He's meeting every delivery with a clearing header. Immense display.
Chelsea 1-1 Plymouth
Plymouth have seen off the Chelsea storm and have now had a couple of chances at the other end.
Panutche Camara towers above Cesar Azpilicueta but the header is straight at Kepa Arrizabalaga.
#bbcfootball or text to 81111
Ian Murray: People talk about the conditions- the wind, the pitch- but ultimately, Kidderminster have scored one more on the same pitch and in the same wind.
Kidderminster 1-0 West Ham
All hands to the pump for the home side. They need to keep winning headers, keep tracking men. Dig deep.