Holders Hibernian could face Hearts in the Scottish Cup following the draw for the fifth round.
Scottish League One Football
Celtic ease past Albion Rovers at the Excelsior Stadium and into the fifth round of the Scottish Cup.
St Johnstone ease past League One Stenhousemuir in the fourth round of the Scottish Cup.
Ayr United and Queen's Park face a Scottish Cup fourth round replay on Tuesday as their first meeting finishes goalless.
Audio & Video
Despite an inspired performance from Stranraer goalkeeper Cameron Belford Aberdeen reach the Scottish Cup fifth round. (UK only)