Erasmus has explained the Reinach-over-Williams call in straightforward terms: experience of the French environment. With only four players in the matchday squad who haven't played in France before, Erasmus leaned on Reinach's familiarity with the intensity of Test rugby in that country as the decisive factor — not form, not fitness. The piece also captures Erasmus's read on what makes France uniquely challenging: not intimidating, but a knife-edge tension he describes as unlike anything the Boks encounter against Rugby Championship opponents. The six-two bench structure remains, with Reinach filling the same utility role Williams played against Italy.