The Stormers have confirmed the arrival of double World Cup-winning Springbok Cobus Reinach for the 2025/26 season.
The Sharks are counting the cost of their defeat to Toulouse in the Investec Champions Cup after a further three Springboks were ruled out of action.
Following a third consecutive Champions Cup loss, the Bulls are effectively out of the running for European rugby's most prestigious silverware.
Former Springbok Nizaam Carr returns to lead the Bulls against French side Castres Olympique at Stade Pierre-Fabre in the third round of the Champions Cup.
Stormers and Springboks prodigy Sacha Feinberg-Mngomezulu has received a positive update after his latest injury against the Sharks at the weekend.
Sharks head coach John Plumtree admitted to being surprised by reports linking Springbok skipper Siya Kolisi with a move back to Cape Town and the Stormers.