Only eight sides remain in Scottish Gas Men's Scottish Cup, with four matches taking place over the course of this weekend to decide who will make it to the National Stadium for the Semi-Finals.
The action gets underway at Pittodrie as Aberdeen host Kilmarnock at 12:15pm live on BBC One Scotland.
Aberdeen have history on their side in this fixture, having never lost to Kilmarnock in the Scottish Cup - winning in all nine previous ties.
However, recent history favours the Ayrshire side, with Kilmarnock - managed by former Dons boss Derek McInnes - triumphing in all three meetings in the league this season.
Aberdeen were last in the semi-finals in 2020, while Kilmarnock's last appearance in the last four came in 1997, the year they last lifted the trophy.
Celtic and Livingston are in action on Sunday, with that match scheduled for a 2:30pm kick off live on Viaplay.
It is the first meeting between the two sides in the Scottish Cup since 2007, when Celtic won 4-1 in the last 16 at Almondvale.
Livingston have struggled in the cinch Premiership but the Scottish Cup has brought some relief in the form of two hard-fought victories against promotion hopefuls Raith Rovers and Partick Thistle.
They face a tough ask at Celtic Park though, with home manager Brendan Rodgers having won all 14 matches we has taken charge of in the Scottish Cup.
Celtic are the holders of the Scottish Cup, having defeated Inverness Caledonian Thistle in last season's final, while Livi last reached the semi-finals in 2004.
Hibernian host Rangers in the second of Sunday's matches, at 5:30pm, also live on Viaplay. The two sides last met in the memorable 2016 final, when David Gray's late winner secured the Hibees first Scottish Cup win in over a 100 years.
Hibernian have reached the semi-finals of this competition in eight of the last 12 seasons, although they have not defeated Rangers at Easter Road in the cup since 1965.
Rangers have already lifted the League Cup this season and manager Philippe Clement will have his sights set on a return to Hampden in the Scottish Cup.
Greenock Morton produced one of the shocks of the competition so far when they defeated Motherwell in the last round and their reward is a home tie against Hearts on Monday evening to round off the Quarter-Final weekend.
The BBC Scotland cameras are at Cappielow for a 7:45pm kick off.
Morton's last win over the Tynecastle side in the Scottish Cup came back in 1981 - the last year that the Ton reached the semi-finals - although they have not met in the Scottish Cup since a 2-0 win for Hearts in 1988.
Steven Naismith's Hearts side have enjoyed a stellar 2024 so far, winning 9 of their 11 matches, including a 4-1 victory over Airdrieonians in the last round of the Scottish Cup.
Scottish Gas Men's Scottish Cup Semi-Final Draw
The draw for the Scottish Gas Men's Scottish Cup Semi-Finals will be made following the conclusion of Morton's match against Hearts. The draw for the last four of the Scottish Gas Women's Scottish Cup will be made at half-time during the fixture at Cappielow.
Both draws will be conducted by Scotland and Aberdeen legend Jim Leighton.
Scottish Gas Men's Scottish Cup Quarter-Final Matches
Saturday, 9 March 2024 (Kick-off 12.15pm) - Aberdeen v Kilmarnock | Live on BBC One Scotland
Sunday 10 March 2024 (Kick-off 2.30pm) - Celtic v Livingston | Live on Viaplay
Sunday 10 March 2024 (Kick-off 5.30pm) - Hibernian v Rangers | Live on Viaplay
Monday, 11 March 2024 (Kick-off 7.45pm) - Greenock Morton v Heart of Midlothian | Live on BBC Scotland