Tyrone make a change. Lorcan McGarrity is on for Ethan Jordan.

Michael McKernan curls over a beauty, and Tyrone move into the lead with just over 15 minutes to play.

Peter Teague strokes over and the sides are level with 54 minutes gone.

It's anyone's game from here!

Ross McQuillan in acres but, perhaps, he had too much time as he curls wide.

David Mohan
BBC Sport NI at the Athletic Grounds

This is set for a very interesting final 20 minutes.

Tyrone hung in early on and have grown into the game with Mattie Donnelly's influence huge. They ball has bounced their way a few times as Armagh just haven't managed to get into the rhythm they enjoyed early.

Armagh's top scorer in the National League, Oisin O'Neill, is introduced with 20 minutes remaining.

Off goes Cian McConville as Tiernan Kelly curls his shot wide.

Niall Morgan is down here for Tyrone. It may just be a cramp as he broke the Armagh kick-out.

With Brian Kennedy and Darragh Canavan already withdrawn due to injury, Tyrone supporters will be hoping he can continue.

He has gone back into his goal for now.

Tyrone are adding that crucial end product. Conn Kilpatrick kicks his second of the day. Darren McCurry, who was kept relatively quiet, is replaced by Eoin McElholm.

Michael McKernan tries for two off the outside of his right, but it goes wide. Tyrone are retrieving primary possession from both their own and the Armagh kickout.

The substitute Conor Turbitt gets Armagh up and running for the second half after 11 minutes.

On comes Conor Turbitt for Tomas McCormack.

He has his tail up now. Ethan Jordan gets his second to reduce the lead to just a point.

Conn Kilpatrick has probably been Tyrone's standout performer. He wins a free inside the arc, and this time, Ethan Jordan, from closer in, converts.

Mattie Donnelly gets his second point. This time off the right foot. Great score to get things going in the second half.

The action resumes with Armagh holding a four-point lead to start the second half.

No changes from either side.

Owen Mulligan
Former Tyrone forward and All-Ireland winner on BBC Sport

I think McMullan for Armagh is pulling the strings and playing his usual best. Tryone need to push up.

Armagh are hitting Tyrone hard, very hard.

Niall Grimley
Former Armagh player on BBC Two NI

It is going to be a huge second half and both teams need to start well.

Conor Meyler
Former Tyrone player on BBC Two NI

Armagh have won the second half of all of their National League games. It is an area I was hoping Tyrone would start fast and start early.

Armagh definitely have a stronger bench at the minute because Tyrone have had to dip into theirs already. Tyrone could be in trouble here.

Still a huge second half to come but, following the match, keep an eye out for the latest episode of the GAA Social live from the Athletic Grounds.

Image source, BBC Sport

David Mohan
BBC Sport NI at the Athletic Grounds

It's been a strange first half at the Athletic Grounds..

The Orchard men have looked much more threatening with their pace and while they have kicked five wides and left one short, Tyrone have missed 10 opportunities - six wides and four short.

It looked like Armagh were set to really kick on at one stage, but despite losing Darragh Canavan and Brian Kennedy to injury, Tyrone have hung in there.

It leaves it well poised for the second half.