Double change for Orient as Jamie Donley and Brandon Cooper are withdrawn and replaced by Jordan Brown and Zech Obiero.

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Close to a third!

Stephen Quinn goes close to a second but is denied by a full-stretch block from Jordan Richards.

Then that triple change for the hosts.

Manager Craig Mahon subs himself on - only in the cup!

Barrow loanee David Worrall and Luis Lacey also enter the fray.

Orient are so close to making it three!

Jamie Donley's left-footed strike smashes the crossbar with Nathan Ashmore beaten after Wood failed to deal with a corner.

Jon D'Laryea
Former Mansfield Town midfielder on BBC Radio Nottingham

I think the changes are necessary. Mansfield have been a little stagnant in these last five minutes or so and I think keep everyone lively.

There are still goals in this game but I think Mansfield have slowed down the tempo just a little bit so introducing Ben Waine will hopefully get that back up.

Forward Ben Waine comes on for the Stags in place of Will Evans as Curzon prepare a triple change.

Full-back Jayden Sweeney is the first Orient player to go in the book.

A string of Mansfield fouls give Curzon a series of free-kicks, but Bobby Jones' long punt is meat and drink for Stags defender Aden Flint.

The livelyIsaac Buckley-Rickettsthen twists and turns his way past Alfie Kilgour and looks to sidefoot it into the corner. It goes narrowly wide.

Better from the hosts.

Pete Wild
Former Barrow manager on BBC Radio Manchester

The reports I've had this season is that Curzon are really good to watch, they're really exciting on the eye and you can really see that in how they're going about their business and how they're playing.

If that's the case then do what you're good at.

The hosts go close to halving the arrears!

Good work from substitute Charlie O'Connell allowed himself to make room for the shot but his left-footed effort was well kept out by O's shotstopper Josh Keeley who has finally been forced into action today.

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League Two against League On is not what we typically associate with the FA Cup first round but throw in a bit of Hollywood glamour with Wrexham and there is always interest.

The north Wales club are riding high in second in League One, chasing a third promotion in three seasons but they have proud FA Cup pedigree and have reached the fourth round in the last two years.

Harrogate have never even got that in their history, but they would love to claim a significant scalp this afternoon.

The Sulphurites are 17th in League Two and won just one of their last six, so victory here would be going against the form book.

15 minutes until kick-off...

Curzon are beginning to look weary as Mansfield keep possession and pull the 10 men around.

George Evans turns Stephen Quinn's cross goalwards, but his effort loops on to the roof of Bobby Jones' goal.

It seems just a matter of time.

But what do they say about 2-0 leads? Dangerous.

Here is that 16th-minute incident that caused plenty of controversy...

Mansfield have started the second half strongly like a side trying to kill off the game completely as soon as possible.

Curzon may well feel a little aggrieved. #

Replays of that early sending-off and penalty appear to show Evans' shot hit the chest of Marcus Poscha rather than his arm.

Sarcastic shouts of handball go up from the crowd as the ball strikes a Stags player.

We are back under way here at Meadow Park.

Neither manager has made a change at half-time.

Mansfield boss Nigel Clough makes a double change for the second half with his side looking comfortable.

Jordan Bowery and Aaron Lewis are on for George Maris and Elliott Hewitt.

Image source, PA Media

There's still one fixture to come today - League Two Harrogate take on League One Wrexham.

We'll have all the action right here of course.

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The referee blows his whistle for half-time with Sonny Perkins' 12th minute goal separating the sides so far.

The hosts will feel they have been let off the hook following some wasteful finishing from the O's as well as some good goalkeeping from Nathan Ashmore who did well in particular to hold Daniel Agyei's stinging drive.

Wood did receive a blow five minutes before the break though when captain Jack Payne was forced off with an injury with Charlie O'Connell taking his place.

Still all to play for in the second half at Meadow Park.

Jon D'Laryea
Former Mansfield Town midfielder on BBC Radio Nottingham

Mansfield have been really professional, they've done what they've needed to do.

There were a few scary moments at the start but other than that it's been a good professional and good performance.

Arguably disappointing that they've not got a third but I think the chances will come.

A clean sheet and a couple of goals in the second half and then you'd argue that it's been a complete performance from Mansfield.

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George Maris lets fly from distance but it's over the bar and that's the break.

The Tameside Stadium is just five miles' drive from the Etihad, and Curzon will need a comeback worthy of Premier League champions Manchester City to get anything out of this tie.

Mansfield made six changes for the trip to the National League North side, but have been in cruise control.

Marcus Poscha saw red after just 16 minutes for handling George Evans' shot on the line and Lucas Akins stuck away the penalty.

Stephen Quinn then doubled the lead after a lovely flowing move to give the 10-man hosts the proverbial mountain to climb.