Rassie Erasmus has identified Zachary Porthen as the long-term successor to Wilco Louw at tighthead, with Saturday's Nations Championship opener against England at Ellis Park giving the 22-year-old another opportunity to press his claim from the bench behind Thomas du Toit.
Louw's absence from the matchday 23 is not form-related. The experienced prop lost his father in April, was unwell during the Bulls' URC final, and is in the process of relocating his family to Cape Town following his move to the Stormers.
"We just felt Wilco needed one week to settle down a little bit," Erasmus said. "He has had a tough time in his personal life with illness, and a family bereavement. His body has also taken some hammering over the last couple of weeks."
Erasmus was unequivocal in his assessment of Porthen's readiness, citing the youngster's performance in scrum sessions against Ox Nché, Gerhard Steenekamp and Ntuthuko Mchunu. "As far as Zach goes, what he has done for us in the scrum sessions has been very impressive. I think he's on the level of Wilco."
Porthen, who made his Test debut against Japan on last year's end-of-year tour, has developed rapidly under scrum coach Daan Human and through sustained daily exposure to seasoned internationals. "He's learned a lot from Wilco and Thomas du Toit," Erasmus added. "We feel he can do a good job for us, especially at altitude."
With Du Toit, Vincent Koch, Louw, Frans Malherbe and Nché all in their 30s, the succession planning at tighthead is a live concern for the Boks, and Erasmus's comments place Porthen firmly at the head of that queue.