Chelsea

Chelsea striker Tammy Abraham talking to BBC Sport: "Great to score a hat trick and win the game so comfortably. It is always nice to get a win and play well. Hopefully we will take that confidence on."

Jimmy Floyd Hasselbaink
Former Chelsea striker on BBC One

Chelsea were always in control, after the change that Lampard made. Hudson-Odoi was fresh, direct and made things happen. A good performance overall from Chelsea.

Danny Murphy
Former Liverpool and England midfielder on BBC One

Job done, it's the result that matters, but there are certain aspects of the performance Frank Lampard will be pleased with.

The last meaningful attack of the match sees Giroud curl a shot straight into the hands of Sluga. Chelsea go through to meet Barnsley, Luton depart the FA Cup with their heads held high.

Here is the superb goal that sealed his hat-trick...

Who else? Tammy Abraham is given man of the match on BBC One.

There will be three added minutes.

Hudson-Odoi looks to get in on the act as the clock ticks into injury time. He picks up a decent position in the box to gather a pass from Werner, but curls his angled shot past the far post.

ARI the boy: Well that’s some kind of justice. Werner only ever looks to go down in the box rather than take his chances.

It is really not happening for Werner is it? The striker's spot-kick is at a nice height for Sluga, who dives to his left and pushes it away.

It doesn't rain it only snows.

Werner charges into the box with Clark for company following a lovely pass from the recently-introduced Kovacic. He looks to go round the keeper but before he can manage it, Clark trips him. The German will take this himself.

Chelsea's captain Mason Mount get a short rest, departing to be replaced by Mateo Kovacic.

Olivier Giroud looks to add some icing to the cake but his chipped shot is easily saved by Sluga.

Bresla Stephenson: A goal made by the Chelsea academy

Credit where it is due...

Nathan Jones is still urging his side on. They can take a lot of credit for their performance here. They were potentially heading for a big defeat but have really dug in and given the Blues a scare.

Brentford are juggling a promotion push and the aftermath of a Covid outbreak that prevented then from playing for 11 days before beating Luton 1-0 in midweek. They make seven change from that game, but only three from the team that beat Middlesbrough in the third round.

Brentford: Daniels, Roerslev, Pinnock, Sorensen, Stevens, Ghoddos, Janelt, Zamburek, Fosu, Forss, Canos. Subs: Raya, Jensen, Dalsgaard, Pressley, Gilbert, Haygarth, Gordon.

Only three players survive from Leicester's midweek Premier League defeat of Chelsea, with Youri Tielemans, James Maddison and Harvey Barnes keeping their places. Of the eight changes, Ayoze Perez is given the nod to lead the line in place of Jamie Vardy, who is set for a spell on the sidelines after surgery on a hernia.

Leicester: Ward, Ricardo Pereira, Amartey, Soyuncu, Thomas, Mendy, Tielemans, Under, Maddison, Barnes, Perez. Subs: Justin, Fofana, Evans, Albrighton, Iheanacho, Choudhury, Ndidi, Castagne, Jakupovic.

Lot of love for Tammy Abraham as he departs to the bench to be replaced by Olivier Giroud. Frank Lampard also sends on Kai Havertz for Hatem Ziyech. Nice for some.

Karen Carney
Former England and Chelsea winger on BBC One

It's an absolutely brilliant goal! Callum Hudson-Odoi gets one v one, gets it across to Tammy Abraham. The positivity, the speed, the accuracy of the pass - Callum Hudson-Odoi has made that goal.

George Moncur is on for Luton, replacing Kal Naismith. The sub has a chance immediately but fires a curling shot wide after the ball had broken to him in the Chelsea half.