Joubert to ref in Sydney
Joubert will be assisted by Andrew Lees and James Leckie, with George Ayoub the Television Match Official (TMO).
New Zealand's Glen Jackson will referee the earlier semi-final between the Hurricanes and Brumbies in Wellington.
Jackson will be assisted by Chris Pollock and Nick Briant, with Ben Skeen on TMO duty.
Super Rugby semi-final referee appointments:
Saturday, June 27:
Hurricanes v Brumbies @ Westpac Stadium, Wellington
Kick-Off 09:35 (SA time)
Referee Glen Jackson
AR1 Chris Pollock
AR2 Nick Briant
TMO Ben Skeen
Waratahs v Highlanders @ Allianz Stadium, Sydney
Kick-Off 11:55 (SA time)
Referee Craig Joubert
AR1 Andrew Lees
AR2 James Leckie
TMO George Ayoub
( File Photo - Gallo Images )