Reuters. Former Australia batsman Usman Khawaja's new autobiography "Sabr" has triggered calls for another investigation into the 2018 ball-tampering incident in the third test against South Africa at. Discover the major highlights from Usman Khawaja's autobiography 'Sabr', from shocking Sandpapergate claims to domestic secrets. Usman Khawaja's decision to revisit Australia's 2018 Sandpapergate controversy in his recently released autobiography has triggered a massive storm.