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A tricky trip to face Swansea away awaits the winners tonight.

Barnet have never reached round five, and are looking to become only the fifth non-league side in the last 25 seasons to get that far, following Crawley Town (2010-11), Luton Town (2012-13) and Lincoln City and Sutton United (both 2016-17).

A 3-3 draw. Classic.

Pulis and Flynn know each other well and grew up in the same part of Wales.

This fine clip tells it all...

Middlesbrough manager Tony Pulis to BT Sport: "We got delayed by fog, we were sat at the airport for two hours. I'm dipping my toe in Newport, I'd prefer to stay and have a few drinks with my mates but we've got to get straight off after.

"The pitch is difficult, the crowd will be fantastic so we will have to roll up our sleeves and have a real go."

I've inadvertently stirred up some club admin beef...

Five changes for Brentford, including in goal as Luke Daniels comes in for Daniel Bentley. Former Chelsea midfielder Josh McEachran starts, as does Moses Odubajo and Sergi Canos, while there is a debut for Mads Sorensen.

Brentford: Daniels, Jeanvier, Sorensen, Dalsgaard, Odubajo, Sawyers, McEachran, Konsa, Canos, Maupay, Benrahma.

Substitutes: Bentley, Watkins, Mokotjo, Da Silva, Ogbene, Barbet, Forss.

Two changes for Barnet from their last match - a 3-3 draw away at Carshalton Athletic in the third round of the FA Trophy. Former Colchester goalkeeper Mark Cousins is in goal, with David Tutonda also starting in place of Watford loanee Ashley Charles.

Barnet: Cousins, Alexander, Sweeney, Johnson, Tutonda, Taylor, Robson, Fonguck, Mason-Clark, Coulthirst, Elito.

Substitutes: Harrison, Sparkes, Matrevics, Akinola, Boucaud, Payne, Bettamer.

Newport manager Mike Flynn to BT Sport: "It's huge. The FA Cup has got back a generation of fans that were lost, it's brought everyone together and gave us memories that we'll never forget."

Newport make six changes from their 3-0 defeat to Grimsby including recalls for goalkeeper Joe Day and striker Padraig Amond.

Former Boro academy player Matthew Dolan, who scored the equaliser at the Riverside to force tonight's replay, drops to the bench.

Newport: Day, Butler, Demetriou, O'Brien, Bennett, Poole, Bakinson, Labadie, Willmott, Matt, Amond.

Substitutes: Townsend, Pipe, Forbes, Sheehan, Crofts, Dolan, Marsh-Brown.

Middlesbrough make five changes including a recall for Britt Assombalonga, who came off the bench to score twice in their 3-2 win at West Brom on Friday.

Middlesbrough: Konstantopoulos, McNair, Fry, Ayala, Flint, Friend, Clayton, Wing, Howson, Assombalonga. Hugill.

Substitutes: Lonergan, Besic, Downing, Tavernier, Van la Parra, Fletcher, Gestede.

Any FA Cup thoughts to share with the watching world? The wonders of technology allow you to do just that.

Are you a Boro fan who couldn't care less about winning tonight?

Does a potential trip to Swansea get the juices flowing?

Or are you a Newport fan, absolutely desperate to see Pep and co down at the Parade?

Fire away.

Nuno Espirito Santo has made six changes to his Wolves side that beat Everton in the Premier League on Saturday.

Meanwhile, Shrewsbury make four changes from the side that lost to Luton Town in League One on Saturday.

Wolves XI: Ruddy, Bennett, Coady, Boly, Doherty, Otto, Saiss, Gibbs-White, Cavaleiro, Adama, Costa

Subs: Norris, Neves, Raul, Giles, Moutinho, Dendoncker, Ennis

Shrewsbury XI: Arnold, Haynes, Beckles, Docherty, Okenabirhie, Bolton, Vincelot, Gilliead, Waterfall, Laurent, Norburn

Subs: Charles-Cook, Edwards, Whalley, Amadi-Holloway, Sears, Rowland, Ward

I'm delighted to hear that Molineux has sold out tonight, too. Wolves are in great form. Tough ask for the Shrews.

Wolves have reached the FA Cup fifth round just once in the last 10 seasons, doing so in the 2016-17 campaign.

They should have a real go at winning it this season, surely?

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Shrewsbury manager Sam Ricketts said: "We're a little bit Jekyll and Hyde at the moment; one performance can be very, very good, then we come away from that and the next game isn't.

"Wolves don't change, that's probably one of the biggest things you can pay compliment to them. They won't change how they play, they're the same every game."

BBC Radio 5 live

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Another cracker. Shrews were 2-0 up before the big lads kicked into gear...

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Non-league club Barnet, the lowest ranked team left in the competition, have no fitness concerns. But one notable absentee.

Barnet chairman Tony Kleanthous says he will not attend the match in protest over the away tickets allocation.

Griffin Park has a capacity of 12,763, and the Bees chief stated that his club received less than the maximum away allocation under FA Cup guidelines of 15% (1,914).

However, the FA also highlights that all away supporters must be in a segregated part of the ground, and Brentford's section for visiting fans holds a little more than 1,600.

Logistical headache...

I'm delighted to say that the rain is absolutely smashing it down in Newport. The pitch is Sunday League sorts of wet.

Filthy, filthy weather...

A late, late leveller for the underdogs...

Four ties to be played. Extra time and penalties very much on the cards...

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Brentford v Barnet (19:45 GMT)

Newport v Middlesbrough (19:45 GMT)

QPR v Portsmouth (19:45 GMT)

Wolves v Shrewsbury (19:45 GMT)