Mayo have enlisted the help of Jim McGuinness to end their All-Ireland final drought - report
Mayo face the biggest challenge of their season as they plot to take down Dublin and end their All-Ireland final drought in the process.
The Dubs are bidding to become one of the greatest teams ever by capturing the Sam Maguire for the fourth time in six seasons, while Mayo are hoping to bring the cup back over their border for the first time since 1951.
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There have been plenty of theories put forward as to how Mayo should go about beating their formidable opponent - a topic tackled by former Donegal manager Jim McGuinness on a number of occasions throughout the summer.
The All-Ireland-winning manager must have made an impression on Mayo boss Stephen Rochford because according to RTE commentator Martin Carney, the Sky pundit was brought in to talk to the Mayo team ahead of Sunday's game.
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While Carney wasn't exactly sure what McGuinness told the team, he guessed that he wasn't brought 'down to talk about forward play'.
"You can't play Dublin in toe-to-toe from the word go," Carney told Matt Cooper on the Last Word this evening.
"They will have to have a sweeper system that they brought into place in the Fermanagh game and have added incrementally since then, primarily with Kevin McLoughlin in the role.
"I think they will try that again but they might even have a double sweeper. It is interesting, in their last weekend in Limerick they had Jim McGuinness down speaking to them. Now, Jim McGuinness isn't coming down to talk to them about forward play. It has to be to look at defence."
McGuinness lead Donegal past Mayo in the All-Ireland final in 2012, and famously handed Jim Gavin the only championship defeat of his Dublin tenure when the two teams clashed in the 2014 semi-final.
He famously pioneered a defensive system built on swift counter-attacking, which has been widely imitated in the seasons since.