Dublin win a free and it's an easy enough one for Cormac Costello.

Stephen O'Hanlon opens Monaghan's account with a towering right-footed effort!

Brilliant score. Good start by the Ulster county.

Ryan McAnespie wins a free in for Monaghan. It's a fair distance, but Rory Beggan hits the upright with his kick!

It bounces back into play and eventually goes out for a Monaghan sideline ball.

Dublin get themselves up and running with Cormac Costello splitting the posts at the end of a move that was launched by a trademark Stephen Cluxton kick-out.

Mickey Harte
Louth manager & ex-Tyrone boss on BBC Sport

Great start from Monaghan, they're not holding back, they're driving at Dublin

Fine effort from Kieran Hughes with the outside of his left boot but it hits the post and goes wide. Close to a Monaghan opener.

Dublin force an early turnover but immediately gift the ball back to Monaghan, who receive an early opportunity to patiently knock it around.

Given the conditions, ball handling is going to be key this evening.

Referee Sean Hurson throws the ball in and we're underway!

Mickey Harte
Louth manager & ex-Tyrone boss on BBC Sport

This Dublin team are coming to the boil at the right time, they really look like All-Ireland contenders and that's a big ask of Monaghan at this stage.

Michael Murphy
Former Donegal captain and All-Ireland winner on BBC Sport

Have Monaghan ever beaten a big team on a big day at Croke Park? The answer has been no and I think that is huge motivation for them.

This is Dublin's 14th consecutive All-Ireland semi-final.

Incredible staying power at the business end of the championship.

John Haughey
BBC Sport NI at Croke Park

Oisin McConville is giving Monaghan a chance today but not many others are.

However, the Farneymen will cling to the memory of the result in the last contest between the two sides 16 months ago when Jack McCarron's sensational performance helped Monaghan stay in Division One and in the process relegated the Dubs.

But it looks like a huge task for Monaghan after Dublin's demolition of League champions Mayo two weeks ago.

John Haughey
BBC Sport NI at Croke Park

No sooner do I say that the rain is holding off that it suddenly starts looking very dark behind Hill 16. More coming soon I think.

The pre-match parade is underway and Croke Park is filling up nicely by the look of it.

Image source, Getty Images

Having ruled the championship with six titles on the spin from 2015 to 2020, Dublin have had to sit back and watch Tyrone and Kerry lift Sam over the last couple of years.

But if their ruthless quarter-final dismantling of Mayo is anything to go by, Dessie Farrell's men look ready to reclaim their place at the top.

The Dubs looked as good as they have done all year against Mayo with the outstanding Colm Basquel hitting 2-2.

Monaghan aren't scared of anyone, but they'll need an almighty performance today if they're to stop Dublin from returning to the final.

John Haughey
BBC Sport NI at Croke Park

A theory doing the rounds earlier was that wet conditions could be a leveller today and give Monaghan a better chance against the classy Dubs but the rain is holding off for now as the blue throngs on Hill 16 are keeping dry at the moment.

Image source, Getty Images

If there's one thing we've learned about Monaghan over the years, it's that they have no quit in them.

They escaped the Division One trapdoor again this year, did enough to emerge from the round-robin stages and snatched victories from the jaws of defeat against Kildare and Armagh to reach the last four.

The consensus is that the road will stop here for Monaghan, who have not featured in an All-Ireland final since 1930.

However, having relegated Dublin to Division Two with a thrilling Clones win the last time the counties met, they will not be daunted by the size of the task this evening.

Philly McMahon
Eight-time All-Ireland winner with Dublin on BBC Sport

The quarter-finals lit a fire in the championship. Dublin and Kerry are really starting to peak and that fits really nicely for these two semi-final games.

Oisin McConville
Armagh All-Ireland winner on BBC Sport

Even though you would feel from the quarter-finals that Kerry and Dublin are slightly ahead of the other teams, I still think that it's going to be a difficult weekend for both of those teams.

Of course, some late changes.

Paddy Small is in for Sean Bugler for Dublin. Bugler is not in the Dublin matchday squad.

Three changes for Monaghan, the most eye-catching of which sees Conor McManus start. Jack McCarron makes way.

Darren Hughes and Kieran Hughes are both in from the start for Monaghan, too, with Ryan O'Toole and Karl Gallagher dropping out as Vinny Corey plumps for experience.