2017 ScheduleAll times ET
Rangers' rejuvenation under caretaker boss Graeme Murty came to an abrupt halt with a 3-1 defeat by St Johnstone at Ibrox.
Scottish champions Celtic set a new British record for domestic games unbeaten after recording their 63rd in a row with a 4-0 victory at St Johnstone.
A Carlos Pena double helped Rangers to a 3-0 Premiership win over 10-man St Johnstone at McDiarmid Park.
Rangers had Kenny Miller to thank for victory in their first European fixture in six years.