Dickinson out Cheetahs clash

Johannesburg - New Zealand referee Bryce Lawrence has replaced Australia’s Stuart Dickinson as referee in the Chiefs v Cheetahs Super 14 match in Hamilton on Friday.

Dickinson has been ruled out through injury.

In a second referee change to Round 11, Steve Walsh will referee the game between the Waratahs and the Brumbies in Sydney on Saturday.

Nathan Pearce replaces Walsh as Assistant Referee at the Sydney Football Stadium.

Full list of referees, assistant referees and TMOs for this weekend's matches:

Friday, April 23:

Chiefs v Cheetahs, Hamilton - 09:35
Referee: Bryce Lawrence
Assistant referees: Garratt Williamson, Shane McDermott
TMO: Josh Noonan

Reds v Stormers, Brisbane - 11:40
Referee: Chris Pollock
Assistant referees: Ian Smith, Simon Moore
TMO: George Ayoub

Western Force v Crusaders, Perth - 13:45
Referee: Jonathan Kaplan
Assistant referees: Paul Marks, Steve Hardy
TMO: Julian Pritchard

Saturday, April 24:

Highlanders v Hurricanes, Dunedin - 09:35
Referee: Vinny Munro
Assistant referees: Josh Noonan, Kane McBride
TMO: Keith Brown

Waratahs v Brumbies, Sydney - 11:40
Referee: Steve Walsh
Assistant referees: Nathan Pearce, James Leckie
TMO: George Ayoub

Bulls v Lions, Pretoria - 15:00
Referee: Marius Jonker
Assistant referees: Joey Salmans, Cobus Wessels
TMO: Johann Meuwesen

Sharks v Blues, Durban - 17:05
Referee: Mark Lawrence
Assistant referees: Jaco Peyper, Christie du Preez 
TMO: Shaun Veldsman