Rangers snatched a dramatic late win over St Mirren, while Celtic edged past St Johnstone to preserve their unbeaten record, as both Old Firm sides extended their winning runs ahead of Sunday's cup meeting between the two. Substitute Bojan Miovski scored in the final seconds at Ibrox, while Mika Baur netted his first Celtic goal on a night when manager Martin O'Neill rested several key players.

Rangers beat St Mirren 1-0 at Ibrox, with Miovski, on for Djeidi Gassama, grabbing a stoppage-time winner to make it four consecutive victories, after St Mirren goalkeeper Jacob Chapman had kept the score level for much of the match. Celtic won 1-0 away at St Johnstone thanks to a second-half strike from Baur, extending their run to six straight league wins and 13 in all competitions, with O'Neill able to leave players such as Kieran Tierney and Cameron Carter-Vickers in reserve before facing Rangers in the Premier Sports Cup.