We are level for the seventh time this afternoon.

Ciaran Byrne keeps his composure to split the posts and draw the Wee County level once again with just over five minutes remaining.

What a finish we have in store at Croke Park.

Monaghan have their noses back in front.

Twenty-one-year-old substitute Max Maguire makes a crucial impact, keeping his composure to split the posts and edge the Farney men ahead once again in this gripping quarter-final.

A huge chance for Louth to edge back in front.

Sam Mulroy wins a free from just outside the arc with eight minutes remaining, but his effort tails just wide of the right-hand post.

A massive opportunity goes begging for the Wee County in a game that remains finely poised.

Louth hit back once again.

A slick one-two down the right releases substitute Tadhg McDonnell, whose perfectly timed run ends with a composed finish over the bar to level the game once more.

The Wee County are beginning to take control around the kick-outs as the contest heads into its closing stages.

Conor McCarthy tries his luck from distance once again, but the effort drifts wide.

It's Monaghan's ninth wide of the afternoon, and they are still unable to create any breathing space as the game heads into the final 10 minutes.

Both managers turn to their benches with 55 minutes played.

Louth introduce fresh legs as Tommy Durnin and Ciaran Byrne replace Kieran McArdle and Conor Early.

Monaghan also make a change, with opening goalscorer Oisin McGorman making way for Darragh McElearney.

End-to-end drama at Croke Park.

Kieran McArdle rattles the crossbar with a powerful effort and Ryan Burns cannot turn home the loose ball as it breaks kindly for Monaghan.

The Farney men counter at pace and make Louth pay, with Micheál Bannigan finishing the move to put Monaghan back in front for the first time since the opening half.

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Monaghan are right back in it.

Jack McCarron sparks the move with a surging run down the right before Ryan O'Toole feeds Stephen Mooney. His pass across goal to the far post finds Stephen O'Hanlon, who is perfectly placed at the back post to palm the ball to the net.

The Farney men are level once again after a brilliantly worked team move.

Jack McCarron is keeping Monaghan in the contest.

The forward stays on his feet under heavy pressure before drilling over another excellent point to continue this absorbing back-and-forth encounter at Croke Park.

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Louth have an immediate answer.

Full-back Donal McKenny surges forward to register his first championship point of the season.

Jack McCarron is beginning to find his range.

After a couple of missed efforts earlier in the half, the Monaghan forward lands his second two-pointer of the afternoon to keep the Farney men firmly in contention.

Louth's bench is making a real impact.

Conor Early produces a superb score from a tight angle on the right to extend the Wee County's advantage.

Monaghan respond with another change as Max Maguire replaces Aaron Carey, with Gabriel Bannigan looking to spark a response.

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Louth are gathering real momentum.

Craig Lennon bursts through the Monaghan defence before capping off the move with an excellent point to stretch the Wee County's lead to four.

Remarkably, despite playing with 14 men for much of the contest, Louth are firmly on top with 47 minutes played.

Louth are beginning to build a cushion.

James Maguire slices through the Monaghan defence before confidently splitting the posts to open up a three-point lead for the Wee County.

Louth's substitute also makes an immediate impact.

Tadhg McDonnell gets on the scoresheet with his first touch to restore the Wee County's two-point advantage.

Jack McCarron thinks he has responded at the other end, but after a Hawkeye review his effort is confirmed to have drifted wide.

Scores traded at either end.

Ryan Burns extends Louth's lead with a well-taken point, but substitute Stephen Mooney responds almost immediately to keep Monaghan within touching distance.

Louth regain the lead through their captain.

Sam Mulroy lands his fifth point of the afternoon to edge the Wee County back in front.

Gavin Devlin makes another change as Paul Mathews replaces Conor Grimes with 42 minutes played.

Andrew Woods is at the heart of it again.

The Monaghan forward bursts through the middle and calmly splits the posts to bring the Farney men level once more.

Both sides turn to their benches.

Monaghan reintroduce Stephen Mooney in place of Ryan McAnespie, while Tadhg McDonnell replaces Conall McKeever for Louth.

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Monaghan continue to build momentum.

Aaron Carey does well under pressure to work the ball back to Andrew Woods, who calmly slots over from close range to restore the Farney men's lead five minutes into the second half.

Monaghan needed a response and they get one.

Stephen O'Hanlon wins a free after being fouled by Conor Grimes, and Jack McCarron makes no mistake from beyond the arc, landing a superb two-point free to open his account to reduce the deficit back to two.