Lood de Jager is to leave the Bulls and join Premiership side Sale Sharks, where the South Africa lock has signed a three-year contract.
Reeza Hendricks has missed out on South Africa's Cricket World Cup squad, with veteran Hashim Amla preferred.
Blue cards will be in use in the Currie Cup First Division as South Africa Rugby continues to work on concussion protocol.
Despite making 10 Test appearances for South Africa, Duanne Olivier would consider switching allegiances to England.
South Africa completed a clean sweep across ODI and Twenty20 matches against Sri Lanka with victory at the Wanderers on Sunday.
Sri Lanka lost their hold on the second Twenty20 international late in South Africa's innings and never looked like recovering.
Lungi Ngidi and Anrich Nortje will play no part in the IPL due to side and shoulder injuries respectively.
David Miller made an impact as both a batsman and a wicketkeeper as South Africa defeated Sri Lanka in a Super Over finish in Cape Town.
Former all-rounder Andrew Hall says Cricket South Africa must ensure young players do not slip through the net to take up Kolpak deals.
The in-form Aiden Markram is among three new faces in the South Africa T20 squad to take on Sri Lanka.