World Rugby's decision to trial a size 4.5 ball — 3% smaller than the standard size five but the same weight — in the revamped WXV Global Series has ignited genuine debate among players. The piece captures the split: Zoe Harrison has called it the 'worst decision ever,' while Ellie Kildunne points out that England won a World Cup with the old ball, which 'can't have been that bad.' The rationale from World Rugby is that a smaller ball could improve skillsets given women's physiology — but critics are pushing back on that logic given already strong lineout and kicking accuracy numbers at the highest level. Worth reading for the player reaction and the broader question of whether the trial reflects a genuine evidence-based intervention or a solution in search of a problem.