Flank Ruan Venter will remain with the Lions until at least June 2028 after signing a three-year contract extension with the Johannesburg-based outfit.
The Sharks' miserable start to the 2025/26 season continued as they were beaten 19-56 by Toulouse in the Champions Cup on Sunday.
The Bulls squandered a commanding position as they fell 46-33 to defending champions Bordeaux Begles in their Champions Cup opener at Loftus.
Springbok loosehead Ntuthuko Mchunu is set to earn his DHL Stormers debut in Friday night's Investec Champions Cup opener against Bayonne.
The Bulls have confirmed their powerful squad to contest the 2025/26 Investec Champions Cup, which gets underway next week.
Newcastle Rugby Ltd have confirmed that Red Bull has taken full ownership of the Newcastle Falcons, with the English Premiership club set to become the Newcastle Red Bulls.