SANZAR has confirmed the referee appointments for Super Rugby through to Week Twelve (11-13 May).

Jaco Peyper will control the opening match of Week Eleven in the only New Zealand Conference match of the weekend, with the Hurricanes hosting the Blues at Westpac Trust Stadium.

The Rebels will return to action the same night to begin Australian Conference proceedings this weekend, hosting the three-time champion Bulls at AAMI Park, which will be overseen by Andrew Lees who makes his Super Rugby debut with the whistle for this match.

The Sharks, coming off the bye, are hosting the Highlanders in their second match of their tour, with Steve Walsh refereeing the first of two inter-Conference matches in South Africa.

Note for your convenience Week Eleven appointments are listed below.

2012 Super Rugby, Week Eleven Referee appointments (Match number, date, teams, city, kick off times)

67. Friday 4 May, Hurricanes v Blues, Wellington, 19:35 NZT, 17:35 AEST, 09:35 SAST
Referee: Jaco Peyper
Assistant Referee: Mike Fraser
Assistant Referee: Francisco Pastrana
TMO: Garratt Williamson

68. Friday 4 May, Rebels v Bulls, Melbourne, 19:40 AEST, 21:40 NZT, 11:40 SAST
Referee: Andrew Lees
Assistant Referee: Angus Gardner
Assistant Referee: Julian Pritchard
TMO: George Ayoub

69. Saturday 5 May, Chiefs v Lions, Hamilton, 19:35 NZT, 17:35 AEST, 09:35 SAST
Referee: Ian Smith
Assistant Referee: Nick Briant
Assistant Referee: Grant Stuart
TMO: Ben Skeen

70. Saturday 5 May, Brumbies v Waratahs, Canberra, 19:40 AEST, 21:40 NZT, 11:40 SAST
Referee: Chris Pollock
Assistant Referee: James Leckie
Assistant Referee: Richard Goswell
TMO: Matt Goddard

71. Saturday 5 May, Sharks v Highlanders, Durban, 17:05 SAST, 03:05 NZT, 01:05 AEST
Referee: Steve Walsh
Assistant Referee: Lourens van der Merwe
Assistant Referee: Reuben Roussouw
TMO: Johann Meuwesen

72. Saturday 5 May, Cheetahs v Force, Bloemfontein, 19:10 SAST, 05:10 NZT, 03:10 AEST
Referee: Stuart Berry
Assistant Referee: Craig Joubert
Assistant Referee: Stefan Breytenbach
TMO: Gerrie Coetzee

73. Sunday 6 May, Crusaders v Reds, Christchurch, 16:00 NZT, 14:00 AEST, 06:00 SAST
Referee: Bryce Lawrence
Assistant Referee: Vinny Munro
Assistant Referee: Kane McBride
TMO: Matthew Muir