In order to win their first Scottish Cup in 27 years Aberdeen will have to produce one of the most famous performances in the club's history and defeat a seemingly invincible Celtic side.

Not a single team in Scotland have managed to touch Brendan Rodgers' side this season and Aberdeen have been as far behind the rest in head-to-head match-ups.

The memory of the League CupfFinal defeat will still sting Derek McInnes and his squad, who had hoped on that one-off occasion they could put the Hoops to the sword. That day Celtic ran out 3-0 winners and Aberdeen barely put up a fight.

McInnes' task on Saturday is closing that gap and finding a way to hurt the Hoops on a day that could make them legendary heroes with the Celtic supporters.

How does he do that? This is our Aberdeen guide to victory...

The Focus: Isolate the left wing

The teams that have performed best against Celtic this season have all done something similar; they've managed to counteract the threat of Scott Sinclair on the Hoops' left hand side. Sinclair has been in lethal form this season, picking up a number of Player of the Year awards and scoring an outstanding 25 goals in all competitions. Yet, if isolated, Celtic can struggle to find the man who can punish the opposition in other areas.

Kieran Tierney has formed a classy partnership with the English winger this season but again if you shut down that left-hand side completely then it also nullifies his overlapping runs.

Allowing Celtic to come forward with possession through their central defenders, specifically Dedryck Boyata, and overloading the Hoops' left flank should make them more ineffective in possession.

Whether they can keep up an aggressive, in your face tempo for the entire 90 minutes is a tough ask though. However, if they can bring the game into the last half an hour then anything can happen.

The Game Plan: Put energy into opening half an hour

If Aberdeen are to pick up the victory they so desperately want then they simply must come out and score in the opening half an hour. Beyond that you'd fancy Celtic to eventually choke their midfield and slowly but surely find ways to pick apart the Dons defence. Putting all their attacking energy into the first period of the game is key.

Celtic have scored most of their goals this season in the last 15 minutes of matches and they simply don't tire so going toe-to-toe with the Bhoys in the second half won't turn out well for Derek McInnes' side. They need to take their chances well then sit in, be organised, be committed, concentrate and hope for the best.

Brendan Rodgers' side are a patient bunch and will happily build into the game. If McInnes can ensure his side counter that with an attacking blitz early doors then they could have a chance to do something special.

The Key Weapon: Niall McGinn

In what will likely be his last match in a Aberdeen shirt, it seems written in the stars that Niall McGinn will be the Dons hero on Saturday, if anyone is. He also throws up that old football cliche of coming back to haunt an old team, given he's a player who didn't quite make the grade at the Hoops.

All that romance aside, he is of course a very fine player and has shown for Northern Ireland in Euro 2016 that he has the ability to perform on the big stage at an elite level.

Having scored 68 goals for the club, without being an out-and-out striker, he's one of the players along with the likes of Adam Rooney and Jonny Hayes that has the finishing ability to beat Craig Gordon.

Is the stage set for McGinn to do what seems impossible?