Gavin Rich's piece uses Carlu Sadie's debut against Wales — in place of the rested Thomas du Toit — as a lens on just how deep South Africa's tighthead stocks run. The core argument: that Malherbe's likely retirement, Nyakane's injury absence and Koch winding down would constitute a crisis in almost any other rugby nation, yet the Boks barely feel it. Zachary Porthen has already cemented himself as a genuine international prop at 22, Wilco Louw remains one of the most destructive scrummagers on the planet, and Du Toit is expected back as first-choice starter by the time the Greatest Rivalry Series kicks off at Ellis Park on 22 August. Sadie, despite winning the Champions Cup with Bordeaux-Bègles, has to treat Saturday as close to a must-perform moment — not because his ability is in doubt, but because the queue behind him is unforgiving. Erasmus has publicly backed his improved conditioning, and Malcolm Marx alongside him should ease the debut nerves, but the piece makes clear that Sadie's window to force his way into the rotation is narrow.