Gavin Rich's piece uses Carlu Sadie's imminent test debut as a lens to examine just how deep South Africa's tighthead stocks run right now. With Malherbe unlikely to return, Nyakane sidelined, and Koch winding down, most nations would be scrambling — but Erasmus has Porthen (22 years old and already drawing 'he's a best' billing), Wilco Louw as a wrecking-ball option off the bench, and Thomas du Toit expected back from his Bath workload in time for Argentina and the Ellis Park All Blacks opener. Sadie gets his shot against Wales at Kings Park largely because Du Toit is being managed, and Erasmus has backed him publicly — pointing to improved conditioning and a Champions Cup-winning pedigree as reasons to give him a run. The subtext is clear though: Sadie is competing for a squad spot, not an established shirt, and Saturday is a significant audition. Rich's framing is that this embarrassment of riches at tighthead — the most scarce position in world rugby — is one of the more underappreciated structural advantages the Boks carry into the upcoming Rugby Championship.