Aus want to do better

Sri Lanka's preparations for the final Test against Australia suffered further setbacks when coach Chandika Hathurusingha was stripped of his team selection responsibilities and their batting coach returned home for personal reasons.

Australia finally have the chance to bring some cheers to their fans after an egregious 2018 when Tim Paine's men take on Sri Lanka at the Manuka Oval from Friday with a series victory beckoning the beleaguered hosts.

The 4-0 Ashes victory in 2017-18 seems like a distant past for an Australian side who have since been beaten away by South Africa and Pakistan and lost their first ever home series to India earlier this month.

The tumultuous trip to South Africa not only resulted in a 3-1 drubbing for Australia, but they also lost their two best batsmen in captain Steve Smith and his deputy David Warner due to a ball-tampering scandal.

Australia beat Sri Lanka by an innings and 40 runs in Brisbane for only their second Test victory of the summer and the hosts are determined not to take their foot off the pedal in the second and final Test.

"We had a great game in Brisbane but I think we can get better," Australia spinner Nathan Lyon told reporters on Wednesday.

Sri Lanka have lost all-rounder Angelo Mathews and paceman Nuwan Pradeep through injuries even before the first Test and their bid to level the series has been jolted with fast bowlers Lahiru Kumara and Dushmantha Chameera also joining them in the sidelines.

Sri Lanka have call up 22-year-old paceman Chamika Karunaratne but their pace attack has already been robbed of much of its firepower.