Glasgow Warriors are the only club to have won each of their opening three fixtures after overcoming the Cheetahs.
Saracens needed two late tries from David Strettle to secure a come-from-behind victory over Northampton Saints.
Argentina's resolve was key to the surprise win against Australia, says head coach Mario Ledesma.
Television footage showed Lukhan Tui arguing with a supporter following Australia's Rugby Championship loss to Argentina.
David Pocock was left frustrated by Australia's wastefulness as they were beaten by Argentina in the Rugby Championship.
Frustrations boiled over after Australia's loss to Argentina, with Lukhan Tui involved in an altercation with a fan.
Australia's dismal Rugby Championship continued with a rare home loss to Argentina on the Gold Coast.
Rassie Erasmus says South Africa's win over New Zealand is the best moment of his coaching career, but insisted the Springboks must improve.
New Zealand missed the chance to wrap up the Rugby Championship as South Africa earned a famous win in a Wellington thriller.
New Zealand coach Steve Hansen would not blame referee Nigel Owens or fly-half Beauden Barrett for the loss to South Africa.
Siya Kolisi warned South Africa not to rest on their laurels after upsetting world champions New Zealand in the Rugby Championship.
Charlie Sharples grabbed two tries as Gloucester rallied from a 10-point half-time deficit to see off local rivals Bristol Bears.
Edinburgh saw off Connacht to record their first Pro 14 win as Munster thrashed a much-changed Ospreys side on Friday.
The Wallabies will be without captain Michael Hooper for their clash against Argentina.
As New Zealand once again set the pace, we look at the stats ahead of the latest round of fixtures in the Rugby Championship.
Prop Santiago Medrano and flanker Pablo Matera will both start for the Pumas against Australia on the Gold Coast.