Cummins is expected to learn this week whether he will be able to feature in Perth on 21 November, with officials conceding the quick is facing a narrow timeline. The 32-year-old has not bowled since Australia's 3-0 series defeat of West Indies in July, with back scans having since detected a stress injury on his back. Asked on Monday what chance he was of playing in the first Test at Optus Stadium, Cummins admitted it was not high.