Tyrone legend Sean Cavanagh once held the record for most ever championship appearances for an outfield player, with 89 games under his belt.
Two weeks ago, Mayo's Aidan O'Shea went one better by reaching 90 appearances, but on his 91st game, Cavanagh's old manager Mickey Harte made sure that the record would not be extended any further this season, as Derry knocked Mayo out of the championship.
Harte was at the helm for the entirety of Cavanagh's inter-county career, and although the Errigal Ciaran native was "Mr Tyrone" throughout that time, he is now in charge of neighbouring and rival county Derry.
After winning the National League title against Dublin back in March, the Oakleafers were one of the favourites to go on and lift the Sam Maguire, but three consecutive championship defeats meant that they plummeted down the pecking order.
However, since their last defeat at the hands of Armagh, they rallied to get a win against Westmeath, and then pulled off an incredible victory against a much-fancied Mayo team away from home.
The Ulster side will now face Kerry in the quarter finals, and although many will still be tipping The Kingdom to win this one, Derry's resurgence has reminded Cavanagh of the 2008 All-Ireland winning Tyrone team that he was a part of.
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Writing in his column for Belfast Live, the Red Hand legend admits that being in charge of a team that is 'written off' is when his old mentor really comes to life.
Mickey, to his credit, is in his element when in charge of a team that has been written off. He got them back to basics. He set the team up to be horrible to play against and he said the right things to Lachlan Murray who excelled against Mayo", Cavanagh wrote.
"They delivered an ambush on Saturday. And they are capable of producing another big upset because nothing generates morale in a side quite like winning.
"We discovered that in 2008. Flying in January, we dipped in April and May, lost to Mayo in the league, to Down in the Championship, and it looked over for us.
"But somehow we found a rhythm and we also found ourselves. It took heartache and time to get there but the point is that Mickey never stopped believing in us.
"And as that summer went on we began to believe in ourselves. That’s where Derry are now. No team will want to meet them."
Kerry are yet to be beaten in the championship, but they have only played one Division One team throughout the whole campaign, and that was Monaghan who finished bottom of the league.
Derry will be hoping that their opponents come in undercooked, while those in red and white will be desperate to prove a point and take another scalp in this All-Ireland race.
