Bulls loose forward Dewald Potgieter has been ruled out for six months after surgery on a torn bicep.
The fallout over the Australian Rugby Union's decision to withdraw Israel Folau from a Super Rugby match at the weekend continues.
Winger Nemani Nadolo scored a hat-trick of tries and flyhalf Colin Slade contributed 25 points as Canterbury Crusaders beat Cheetahs 52-31.
The Sharks moved back to the top of the Super Rugby standings with a hard fought 25-12 win over the Lions in Johannesburg.
Cult hero Nick Cummins bagged a hat-trick of tries to fire the Western Force to a dominant 28-16 victory over the Waratahs.
Gareth Anscombe kicked 17 points as the Chiefs defeated the Rebels 22-16 in the Super Rugby clash at Waikato Stadium.
The ACT Brumbies relied on an iron-clad defence to hold off a desperate Queensland Reds side 23-20 in their Super Rugby match.
The Otago Highlanders re-ignited their Super Rugby campaign with a rousing 27-20 victory over the Bulls in Dunedin on Friday.
Lock Victor Matfield has been drafted back into the Bulls side to face the Otago Highlanders in Dunedin.
The Cheetahs were pegged back by a second-half comeback by the Chiefs as the Super Rugby clash ended in a 43-43 draw.
Benji Marshall's stint in Super Rugby with the Auckland Blues could end up being brief with Salford aiming to lure him back to England.
Beauden Barrett kicked 20 points as the Hurricanes claimed their first win over the Bulls since 2008.
The Queensland Reds have lost Wallabies winger Lachie Turner for five weeks due to ankle surgery.
Fullback Jayden Hayward scored a try two minutes from time to give Western Force a 32-29 victory over the Queensland Reds in Brisbane.
Pat McCabe scored two tries as the Brumbies put their title charge firmly back on track with a 26-9 victory over Auckland Blues.
Fullback Israel Folau has been ruled out of the New South Wales Waratahs' clash against the Stormers in Cape Town on Saturday.