Matt Renshaw did not come out of an Australian academy. He came out of a driveway, and the man who designed it studies for a living how human beings learn to move. His father is Dr Ian Renshaw, Adjunct Associate Professor at Queensland University of Technology and one of the people who built the constraints-led approach to coaching. He co-wrote the book on it. And he refused, almost on principle, to teach his son a technique. He was advised to bowl at Matt from day one and to tie the bowling to the batting, so the boy learned to pick length before he learned anything else. The rest happened on the driveway. Hit it across the street. Hit the side of the house. Pop-up goals standing in as fielders, cones laid out, a different rule every week depending on what Matt needed that week. And when something went wrong, his father asked him what he should do about it instead of telling him how to do it. The family even moved to New Zealand partly because the country was full of artificial pitches. Before that, there was Abbeydale Park, where his father played club cricket for Sheffield Collegiate. The kids ran onto the outfield after the men finished. Joe Root was one of them, and Billy Root, because their father played there too. Renshaw remembers almost none of it. What he has been told is that he cried a lot when he got out. New Zealand at seven. Brisbane at ten. Brisbane Grammar School. A first-class hundred against New South Wales at nineteen. A Test debut against South Africa at twenty, in place of Joe Burns. A 184 at the SCG two months later. And then this. In his eleventh Test innings, Matt Renshaw became the first Australian in history to reach 500 Test runs before turning 21. He broke Clem Hill's 482. That record had stood for 119 years. What a story. His father must be so proud