'Sandpapergate': Mitchell Starc denies knowledge after Usman Khawaja claims as Cricket Australia says investigation will not be re-opened

Usman Khawaja claims in new book Sabr that every Australia player was aware of ball-tampering scheme in Cape Town in 2018; current Test captain Pat Cummins set to speak to media in coming days and weeks; Mitchell Starc says recollections from 2018 have not changed as he denies knowledge