A Stormers side featuring two World Cup-winning Springboks have been handed a timely wake-up call after losing to the Southern Kings in a pre-season clash.
Ulster left Southern Kings still looking for their first win in the Guinness PRO14 this season after running out convincing 42-17 winners at Nelson Mandela Bay Stadium.
Marcell Coetzee marked his comeback for Ulster with one of their five tries in a 33-19 Guinness PRO14 win over the Southern Kings.
The Southern Kings scored two tries in two minutes to record a sensational come-from-behind win over Edinburgh in Port Elizabeth on Saturday.