Cape Town - South Africa’s Jaco Peyper will referee Saturday’s Super Rugby quarter-final between the Stormers and Chiefs at Newlands (17:00 kick-off).
Pyper will be assisted by compatriots Rasta Rasivhenge and Quinton Immelman, with Johan Greeff the television match official (TMO).
South Africa's Marius van der Westhuizen will referee the quarter-final between the Lions and Sharks in Johannesburg.
Van der Westhuizen will be assisted by Jaco van Heerden and Egon Seconds, with Marius Jonker on TMO duty.
Meanwhile, Australia’s Angus Gardner will referee Saturday's early quarter-final between the Crusaders and Highlanders in Christchurch (09:35 SA time), while New Zealand’s Glen Jackson will be in charge for Friday’s clash between the Brumbies and Hurricanes in Canberra (11:35 SA time).