Saturday's Vodacom Super Rugby Unlocked match between the Cell C Sharks and the DHL Stormers in Durban has been cancelled.
That’s after a positive Covid-19 test among the Sharks' tighthead props.
It is the third match in the competition to be cancelled because of the coronavirus.
The Emirates Lions’ matches against the Toyota Cheetahs and the Phakisa Pumas were also canned.
Friday's Super Rugby Unlocked clash between the Pumas and the Vodacom Bulls in Pretoria has been pushed back to Saturday 21 November.
The Pumas squad which returned several positive tests last week will be re-tested on Thursday.
The results will be known on Friday, allowing time for a training session after 10 days in isolation ahead of Saturday’s match against the Bulls.
SA Rugby CEO Jurie Roux has meanwhile urged players and management to exercise extreme caution in their social engagements.
He says it only takes one careless interaction by a single player to have a knock-on effect that will have an impact on 45 other players, team management, the schedule and potentially the destination of the title.
