Usman Khawaja claims Australia's entire team knew about the 2018 sandpaper plot and questions Cricket Australia's investigation, which it continues to defend. |. Former opening batter says in his new book 'all of us' were aware of what was going on in 2018, not just Smith, Warner and. The ‘Sandpapergate’ scandal saw Australia scuffing the ball with sandpaper in the March 2018 test in Cape Town.