Celtic remain top of the cinch Premiership after beating Motherwell 4-0 at Fir Park in the early game on Sunday.
Ange Postecoglou's side were 3-0 up at the break thanks to goals from Tom Rogic (2) and Liel Abada. Daizen Maeda added the fourth with 19 minutes left.
Rangers are just a point back in second place in the table after thrashing Heart of Midlothian 5-0 at Ibrox in the later game.
Alfredo Morelos grabbed a double, with Glen Kamara, Scott Arfield and Fashion Sakala also on target for Giovanni van Bronckhorst's team.