DHL Stormers centre Huw Jones has been ruled out for four to five months after tearing his hamstring while playing for Scotland.
Jones will undergo surgery in London, and joins fellow Stormers midfielders Juan de Jongh and Damian de Allende on the sidelines.
De Jongh's grade three medial collateral ligament tear is progressing well and he is expected to be back in action in six weeks, while De Allende has another six to eight weeks before he will be able to return from his syndesmosis ankle injury.
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Meanwhile, Cheslin Kolbe (ankle sprain) and Jano Vermaak (calf strain) will both return to training next week and should be in contention to play against the Cheetahs at Newlands on 1 April.
Flyhalf Jean-Luc du Plessis is progressing well, following a pelvic bone stress injury and should be available for selection in three to five weeks time.
Flank Steph de Wit is mobilising slowly after fracturing his ankle, with the bone healing well after surgery.
On the long-term injury list, hooker Scarra Ntubeni is running at full pace in a controlled environment as he continues to make progress following his Achilles tendon rupture sustained last year, while wing Leolin Zas is mobilising well after surgery on his broken tibia and fibula.
Photo: Andy Buchanan/AFP Photo