Cape Town - South Africa’s Marius van der Westhuizen will referee the Sharks’ Super Rugby match against the Jaguares in Buenos Aires on Saturday (kick-off 22:40 SA time).
Van der Westhuizen will be assisted by Juan Sylvestre and Damian Schneider, with Santiago Borsani the television match official (TMO).
Jaco van Heerden will referee the Lions’ clash against the Blues in Johannesburg (19:15).
Van Heerden will be assisted by Jaco Peyper and Pro Legoete, with Shaun Veldsman the TMO.
Argentina’s Federico Anselmi will referee the South African derby between the Cheetahs and Southern Kings in Bloemfontein (17:05.
Anselmi will be assisted by Stuart Berry and AJ Jacobs, with Johan Greeff on TMO duty.
New Zealand’s Paul Williams will referee the Stormers’ clash against the Sunwolves in Singapore (13:55 SA time).
Williams will be assisted by Mike Fraser and Shuhei Kubo, with Takashi Hareda in the TMO booth.
New Zealand’s Glen Jackson will referee the Waratahs’ clash against the Bulls in Sydney (11:45 SA time).
Jackson will be assisted by Ben O'Keeffe and James Leckie, with George Ayoub calling the shots from above.