Usman Khawaja insists he has not thrown anyone under the bus with his bombshell ball-tampering revelations that have rocked Australian cricket. Darren Lehmann and Michael Vaughan have been critical of Usman Khawaja after his shocking claims in relation to the 2018 Sandpapergate. Usman Khawaja has revealed Steve Smith talked him out of going public with claims of widespread knowledge around ball-tampering during the 2018 saga.