Leinster may be leading the charge for the URC title this season, but their road into both the European and URC finals is beset with pitfalls.
The Stormers and Western Province suffered a number of injuries in the two fixtures last Friday.
Bulls coach Jake White is feeling buoyed by his charges' new confidence as they head into their URC quarterfinal clash with the Stormers.
The Sharks team for Friday night's United Rugby Championship match against Benetton at Kings Park remains almost unchanged from last week's side that did battle in the Champions Cup.
Stormers coach John Dobson has urged his side to be wary of the threat of Springbok centre Andre Esterhuizen among others when his side clash with Harlequins in the Champions Cup Round of 16 on Saturday.
The Lions' United Rugby Championship play-off hopes were kept alive by a remarkable late comeback that led to a 32-28 victory over Benetton at Stadio Monigo.