Pro squash officiating must be right up there with the most challenging officiating gigs in pro sport. John Massarella is without question the game's go to official, and he attributes his rise as the game's top official to a passion for it that he acquired early on. John provides a masterclass breakdown on a number of topics in this great chat including the movement towards a more free-flowing, let-free game which has resulted in recent "changes" in decisions on lets and strokes. He also gets into what it takes to referee under pressure at the highest levels and much more.