Brentford

Brentford manager Keith Andrews, speaking to BBC Sport, said: "It was a proper cup tie. They took the lead and in the first half we didn't hit the heights we could and should've done but in the second half we got back into the game.

"Extra time, we huffed and puffed and when you get to penalty kicks, it is noty a toss of a coin but you need luck. They took theirs very well and unfortunately we missed one.

"With a goalkeeper like Caoimhin, you feel he will save one and their penalties have to be good and they were."

On Dango Ouattara's missed Panenka: "When you miss a penalty it is a tough moment, but it is easier to not take a penalty than take a penalty. We've had it in the past when people have been persecuted and ridiculed for missing a penalty on the biggest stage and that's ridiculous.

"He practices that technique a lot and will have the utmost support from me and everyone around.

"We really wanted to get through to the quarter-final but it was not to be. But we have nine games left where we can push on and do something special."

West Ham United

More from West Ham captain Jarrod Bowen speaking to TNT Sports: "We haven't been good enough this season but we are coming into the business end of it now and we've got a big game coming up on Saturday, we are into the quarter-finals of the FA Cup and things are on the up for us. We have to keep doing it, keep demanding it and keep raising the level."

On Leeds in the last eight: "Leeds are a really good side and will want to do well in the FA Cup as well, but we saw what we did at home today against a Premier League side so that is whenever it is. We have two really big games before the international break that we want to go and get maximum points from.

"Now it's about rest because 120 minutes isn't good for anyone. We go and rest, play at the weekend, play Aston Villa and hopefully go into the break with two results."

West Ham United

West Ham captain Jarrod Bowen speaking to TNT Sports: "It's a special feeling. I go back to the QPR game [n the third round] where, I don't want to say our season started, but we knew that was the chance to really turn the season around and give us confidence and belief. We have done that in the Premier League, we have picked up points and good results, and tonight was the same.

"It was important to put in a good performance. We knew it was going to be a difficult game. Every FA Cup game we've had has gone to extra-time now, but we want to get to the final. We want silverware at this club. You can see it up there [on the stand] how many times they have won the FA Cup and it is a dream of mine to win it. Of course we've got a long way to go yet but tonight is a really big night for everyone involved.

"As you can see confidence comes from winning games. Ok we didn't win the game on the night but we won it on penalties which makes it a little bit more special. Phonse [Areola] saved one, the lads put theirs away really well and you can hear it and see it."

Glenn Hoddle
Former England and Tottenham manager on TNT Sports

He [Dango Ouattara] took so long, I think he had a thousand thoughts going through his mind and when you're like that as a taker you miss. The young lad will absolutely regret trying the Panenka at that time.

Joe Cole
Former Chelsea and England midfielder on TNT Sports

He [Dango Ouattara] looked so confident, he took his time and looked in complete control and he did that - it's unexplainable.

He was outstanding, really good [through the 120 minutes], but that does not matter when you miss a penalty in a shootout. You don't want to chastise the lad, I hope he doesn't do it again in his career.

We now know the last eight of the FA Cup. We have six Premier League sides, one from the Championship in Southampton, with Port Vale, bottom of League One, also there as well.

Image source, BBC Sport

Glenn Murray
Former Crystal Palace and Brighton striker on BBC Radio 5 Live

You won't many better penalties than the five West Ham have just dispatched to put them through to the quarter-finals. It's welcomed by a full house in full voice. Forever blowing bubbles.

More momentum for West Ham. A really good victory for them. The five penalties were absolutely superb, of the very highest order.

Football is all about moments, and when you decide to do a Panenka [as Ouattara did] and it doesn't come off, that is the outcome.

Vicki Sparks
BBC Radio 5 Live commentator at London Stadium

It is another super penalty from Mavropanos, straight into the top corner. West Ham have been flawless in this shootout.

They might be fighting to stay in the Premier League this season but they are through to the quarter-finals of the FA Cup for the first time in a decade.

All credit to West Ham, five superb penalties. Dango Ouattara is the villain for Brentford with a truly woeful Panenka penalty, the only one that was missed.

West Ham, who made seven changes to their side, get through to a home quarter-final against Leeds United.

Both the Hammers and Leeds have had tough seasons, one of them will be playing in an FA Cup semi-final at Wembley.

Image source, Getty Images

This to win it for West Ham...

Brentford have to score or it is all over.