The destiny of the William Hill Premiership trophy will be decided on Saturday when leaders Hearts travel to Celtic Park, live on Sky Sports at 12.30pm.
Derek McInnes' men remain a point clear at the top of the table after beating Falkirk 3-0 at Tynecastle thanks to goals from Frankie Kent, Cammy Devlin and Blair Spittal.
Reigning champions Celtic were 3-2 winners in a dramatic match at Fir Park as Kelechi Iheanacho converted a penalty nine minutes into stoppage time following a VAR check.
Elliot Watt gave the Steelmen the lead before Daizen Maeda and Benjamin Nygren turned things round. Liam Gordon equalised for Motherwell with five minutes left but Iheanacho won it right at the end from the spot.
Hibernian kept alive their hopes of a fourth-place finish thanks to a 2-1 win over Rangers at Ibrox. Thelo Aasgaard cancelled out Martin Boyle's opener but Dane Scarlett grabbed an 89th-minute winner for David Gray's men.
Stenhousemuir beat Alloa Athletic 3-1 at the Indodrill Stadium in the first leg of the Championship play-off final, with the second leg at Ochilview on Saturday.