Craig Joubert has been appointed to referee Saturday's Super Rugby quarter-final between the Lions and Crusaders in Johannesburg.
The 38-year-old will be assisted by Marius van der Westhuizen and Rasta Rasivhenge as the touchline officials, with Marius Jonker on duty in the TMO box.
In Cape Town, the quarter-final between the Stormers and Chiefs will be officiated by Jaco Peyper. Jaco van Heerden and AJ Jacobs will be his assistants and Johan Greeff the fourth official.
Glen Jackson will take charge of the match between the Hurricanes and Sharks in Wellington, with Nick Brian and Paul Williams on touchline duty and Glenn Newman serving as TMO.
The quarter-final between the Brumbies and Highlanders in Canberra will be handled by referee Angus Gardner, who will be assisted by Ben O'Keeffe and Nic Berry on the sidelines and George Ayoub as TMO.
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