Sri Lanka's slump with the bat on day three cost them dearly, with Australia needing less than 25 minutes to take their final two wickets on Sunday.

(Reuters) -A clinical Australia took a little over three days to pound Sri Lanka by nine wickets in the second test and complete a 2-0 series sweep in Galle on Sunday. Australia's first series victory in Sri Lanka since 2011 is a timely boost for a team that will be defending their World Test Championship (WTC) title in the final against South Africa in June.

Australia wrapped up a comprehensive 2-0 series victory over Sri Lanka, sealing the second test with a commanding nine-wicket win in Galle.

Australia have been the most successful team in the World Test Championship, and the win in the second Test in Sri Lanka helped them break England's world record and become the team with most Test wins in the WTC history.

Australia beat Sri Lanka by nine wickets inside four days of the second test to complete a 2-0 series sweep in Galle on Sunday.

Australia put on a clinical display on the third day of the second test against Sri Lanka, leaving the hosts teetering at 211-8 and holding a slender lead of just 54 runs on Saturday. The visitors will try to wrap up the Sri Lankan innings early on the fourth morning and chase down the target in a bid to complete a 2-0 series sweep.

Australia hammered Sri Lanka in the second and final Test match to clean sweep the series 2-0. With the win, Australia completed a perfect WTC cycle, where they held every single bilateral trophy in the red-ball format.

Australia finally conquered Sri Lanka after a siege lasting eight days over two Test matches. It means they will head to the world Test championship final as firm favourites.

OUT! b Beau Webster. Sri Lanka vs Australia Live Score: Sri Lanka Lahiru Kumara 9 (17) Nishan Peiris 4 (14) Australia Nathan Lyon 4/84 (28) Sri Lanka vs Australia Live Score: Sri Lanka Lahiru Kumara 8 (15) Sri Lanka vs Australia Live Score: OUT!