Ronan O'Gara on Ireland v the Boks: If only games were played on paper or in the gym

What may be under-appreciated is Jack Crowley's inner steel. He has accepted his challenges, his failings, his learnings. If Ireland are to win this World Cup, he is going to have a big role.

GAME CHANGERS: Bundee Aki may be in the form of his life but Robbie Henshaw's impact off the bench will be crucial for Ireland on Saturday. Pic: INPHO/Dan Sheridan

STRAIGHT to the question of our times: Does size matter?

This 7-1 bench split from the South Africans has dominated the build-up to Saturday, mostly with ill-informed, or certainly under-informed, debate and presumption regarding its novelty and intent.