Sean Cavanagh, Conor McManus, Michael Murphy and Aidan O'Shea are all bidding for glory this weekend.

KERRY AND DUBLIN are already safely through to the All-Ireland semi-finals, and tomorrow they will find out their opponents.

First up in Croke Park it’s the quarter-final clash of Tyrone and Monaghan at 4pm with the winners facing Kerry on 23 August.

Tyrone last reached a semi-final in 2013 when they lost to Mayo on the back of a quarter-final win over Monaghan.

Darren McCurry and Conor Clarke celebrate Tyrone's 2013 All-Ireland quarter-final win over Monaghan. Cathal Noonan / INPHO Cathal Noonan / INPHO / INPHO

Ulster champions Monaghan are bidding to reach the last four for the first time since 1988 when they lost out to Cork.

Monaghan players celebrate their Ulster final win. Cathal Noonan / INPHO Cathal Noonan / INPHO / INPHO

That’s the curtain-raiser and the second clash tomorrow in Croke Park at 6pm sees Mayo face Donegal. Mayo will be bidding to repeat their 2013 quarter-final win and reach the semi-final stage for the fifth successive year.

Keith Higgins celebrates the recent Connacht final win with Mayo supporters Donall Farmer / INPHO Donall Farmer / INPHO / INPHO

While Donegal will be seeking a fourth semi-final place in five years if they can overturn the Connacht champions.

Patrick McBrearty and Colm McFadden celebrate Donegal's goal in last week's clash against Galway. Morgan Treacy / INPHO Morgan Treacy / INPHO / INPHO

But who do you think will triumph? Let us know below.

Here’s the 12 key GAA fixtures to keep an eye on this week

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