Dundee earned an important 3-1 home win over St Mirren to move out of the relegation zone in the William Hill Premiership as the visitors slipped to 11th place.
Leaders Heart of Midlothian drew 0-0 against in-form Motherwell at Fir Park in front of a bumper crowd of 10,939.
Kilmarnock and Dundee United drew 1-1 in the Saturday evening fixture at Rugby Park.
There are three games on Sunday - Hibernian v Celtic (Sky Sports, 12 noon), Rangers v Falkirk (2.00pm) and Livingston v Aberdeen (3.00pm).
There were no matches in the William Hill Championship, League 1 or League 2 this afternoon due to the third round of the Scottish Cup.