All-Ireland Senior Championship quarter-finals
Armagh v Mayo, Glennon Brothers Pearse Park, 1pm
Galway v Waterford, Glennon Brothers Pearse Park, 2.45pm
All-Ireland Senior Championship relegation qualifier
Cavan v Westmeath, Kinnegad, 3.45pm
Armagh v Mayo live on TG4 from 12.45pm, Galway v Waterford live on Spórt TG4 YouTube.
Live score updates and reports on RTÉ.ie and RTÉ News Now App.
Live updates on RTÉ Radio 1's Saturday Sport and Sunday Sport.
Saturday will bring a mix of sunny spells and showers. Many of the showers will be heavy with a risk of thundery downpours. Moderate west to northwest winds. Maximum temperatures 17 to 21 Celsius.
Sunday is set to be a much fresher and cooler day, with overnight rain due to clear throughout the day, with light winds expected, and maximum temperatures ranging from 14 to 17 degrees. For more see Met.ie
Armagh v Mayo
Both of these counties bowed out at the quarter-final stage last year, so the winner will at the very least be able to point to some sense of progress this summer, regardless of how the remainder of their Championship campaign pans out.
Armagh last reached the semi-final stages in 2015, and will be confident of their chances after a thrilling win against Cork last time out.
Mayo are much more familiar with the business end of the season, losing the 2017 final to Dublin.
Armagh forward Aimee Mackin is only fit enough to be named on the bench, while Mayo boss Peter Leahy hands starts to Kathryn Sullivan, Emma Needham and Maria Reilly.
Galway v Waterford
Galway are keen to prove they can take the next step in their development, having been beaten in the semi-finals by Dublin last year before losing this year's Division 1 League final to Cork.
In Waterford, the face a county on the rise. The Déise survived relegation last year and come in to this game on the back of a big win against Monaghan to book their place in the quarter-finals.
The Connacht side will be favourites, but will need to be on their game to avoid an upset.
Galway are unchanged from the side that beat Westmeath, while Waterford boss Ciaran Curran has brought Cora Murray and Brigita Valuntaite in to his starting 15.
Cavan v Westmeath
The losers of this tie will have a second shot at survival against Monaghan next week, but safe to say both teams will be keen to secure their senior status this weekend.
Cavan are no strangers to this situation, having had to beat Tipperary last year to avoid relegation. They lost to Armagh by a point in the group stages this year, while they also suffered a heavy defeat by Cork.
Westmeath have been competitive but ultimately fell short against both Galway and Kerry.
Cavan have replaced Elaine Walsh with Róisín Reilly between the sticks, while Joanne Moore gets the nod ahead of Aisling Gilsenan,
Westmeath make one change to the team that lost out to Kerry, with Nicole Feery named at left-half-forward ahead of Annie Dolan.
Armagh (v Mayo): A Carr; S Marley, C McCambridge, C Morgan, M Sheridan, N Marley, C McKenna, T Grimes, C O'Hanlon; M Moriarty, K Mallon, C Marley; A Donaldson, B Mackin, A McCoy.
Mayo (v Armagh): A Tarpey; N O'Malley, D Caldwell, É Roynane, K Sullivan, Ciara McManamon, C Whyte; Clodagh McManamon, E Needham; S Cafferkey, M Reilly, N Kelly; S Rowe, R Kearns, G Kelly.
Galway (v Waterford): L Murphy; N Ward, S Burke, F Cooney; O Murphy, B Hannon, C Cooney; L Ward, Á McDonagh; O Divilly, M Glynn, M Seoighe; T Leonard, S Conneally, R Leonard.
Waterford (v Galway): R Landers; C Murray, C McGrath, Kate McGrath; R Tobin, Karen McGrath, E Murray; K Murray, C Fennell; A Wall, K Hogan, B Valuntaite; E Fennell, M Ryan, M Delahunty.
Cavan (v Westmeath): R O'Reilly; J Moore, R Doonan, S Reilly; S Greene, M Sheridan, S Lynch; N Byrd, S O'Sullivan; L McVeety, D English, C FInnegan; A Maguire, A Sheridan, L Fitzpatrick.
Westmeath (v Cavan): L McCormack, R Dillon, J Rogers, L Power; K Boyce-Jordan, K McDermott, F Coyle; J Maher, MA Foley; S Dolan, A Jones, N Feery; L Slevin, F Claffey, V Carr.r.