Conor Turbitt knocks over a free for Armagh at one end to put two between them.

Ciaran Downey replies at the other end to cut the gap back down to a single point as we enter six minutes of additional time.

Sam Mulroy levels proceedings for a third time from a free.

Conor Turbitt replies with his third of the evening and first from play to edge Armagh back in front by the minimum.

Stefan Campbell is on fire here as he lands his third from play, that's six scores without reply for Armagh.

But Ciaran Downey stops the rot for Louth and cuts the gap back down to a single point.

Image source, Inpho

Shane McGuigan's 73rd-minute free means Derry mark their return to the Allianz League top flight with a win.

After opening up a five-point lead midway through the second half, it was looking like the Ulster champions were on their way to a comfortable win.

However two-quick fire Kerry goals brought the Kingdom back into it, and as the game ticked into injury time, it was looking like Kerry were going to squeeze home.

However the last word was left to McGuigan to seal a famous Derry win.

Conor Turbitt lands a free to level the sides for the first time since the first whistle.

That man Stefan Campbell is then on hand via the outside of his right boot to shoot the Orchard men into the lead.

Conor Grimes shoots over for Louth to put four between the sides.

Armagh get their first score of this second half, 10 minutes in through Stefan Campbell.

Captain Aidan Forker then lands a point for the hosts before Rory Grugan nails a free and with that a single point separates the sides.

Derry snatch it at the death!

Cormac Murphy runs at the Kerry defence and draws the foul, and Shane McGuigan makes no mistake from the resulting free.

Kerry launch one final attack but nothing prevails and Derry claim an opening day win by the narrowest of margins.

What drama!

Sam Mulroy gets the first score of the second stanza and it's also his first of the day.

Mulroy is then on target again, this time with a close-range free and the Louth lead is increased to three.

A Graham O'Sullivan mark draws Kerry level in the 70th minute. It's all Kerry as we enter three additional minutes.

The knuckles of Chrissy McKaigue save Derry from conceding a third goal before the Kerry attack butcher a two-on-one chance.

Somehow Derry still lead by one despite a flurry of goal chances for the hosts.

Breathless stuff.

10,452 is the attendance in Armagh tonight. No changes to either side at the break.

Kerry have another goal and it's Dylan Casey who fires home from close range to level proceedings.

Casey gave Odhran Lynch no chance in the Derry goal following Graham O'Sullivan's pass.

Ciaran McFaul points to put Derry back in front. What a game this is turning out to be!

Derry get turned over in midfield and with Odhran Lynch out of his goal, Kerry substitute Conor Geaney finishes to the empty net.

All to play for with 12 minutes remaining. Kerry look a different team now.

With Ciaran McFaul back on, Shane McGuigan converts a free from the right-hand side into the wind to push Derry's lead out to four.

Rory Grugan puts one between the sides with an eye-catching effort on the outside of his left boot.

Grugan was also involved in the last action of the half as his free dropped short.

Ger Brennan will be more than pleased with his side's early efforts after they raced into a 0-4 to 0-0 lead. His side have had four different scorers with star attacker Sam Mulroy surprisingly yet to get off the mark.

Conor Turbitt has passed up two huge goal chances for the home side who have played the first 35 minutes against a very stiff breeze.

Will that one-point advantage be enough for Louth in the second half? You'd have to feel Armagh will take greater advantage of the elements in the second stanza.

Image source, Inpho

Sean O'Shea keeps Kerry in touch with a long range free before Odhran Lynch saves brilliantly to deny Jason Foley what looked like a certain Kerry goal.

Instead they have to settle for another O'Shea free.

Kerry move to within three and it's very much game on in Tralee as Ciaran McFaul returns to the fold after his black card.

Paddy Lynch's eight points help Cavan beat Kildare 0-16 to 0-12 in the Division Two opener at Dr Cullen Park.

A perfect start for new Breffni County manager Raymond Galligan.

Image source, Inpho

Ciaran McFaul receives a black card for deliberately pulling down Gavin White.

A big 10-minute spell ahead for Mickey Harte's men.

Image source, Getty Images

An early Shane McGuigan free pushes Derry's lead out to five, and a Gareth McKinless effort extends it to six.

Conditions are horrible in Tralee, but it's not affecting the Derry players all that much.

Tommy Durnin lands a point to edge Louth three in front once more only for Conor Turbitt to reply for Armagh with his second free of the evening.