Lasith Malinga yet again took a hat-trick, and struggling middle-order bat Chamara Silva (63) finally came good as Sri Lanka overcame Australia in the last, briefly-rain-interrupted One-Day International of the series here.
In some ways, Malinga's hat-trick, his third in ODI cricket, a record in itself, set the stage for a Sri Lankan recovery. Australia was on course for a score of around 250 when Malinga willed otherwise.
An unusually patient Watson (56) and Clarke (47) had given the side enough base to build on; and David Hussey (46 off 49 balls) came down the order to give his team the momentum it needed. But it did not seem easy when Tharanga went in the first over, nicking one from Johnson and Sri Lanka lost three wickets with just 33 runs on the board.
Mahela Jayawardene (71) and Silva took the side to safety. Then Jayawardene along with Mathews helped the host get close to the target.
The win came as a consolation for the Sri Lankans.