Dinesh Chandimal has scored an unbeaten 63 as Sri Lanka struggled to 136-5 at lunch on Day 3 in reply to Australia's imposing first innings of 654 in the first cricket test.

Australia's Usman Khawaja struck a maiden double hundred and Josh Inglis got a century on his test debut against Sri Lanka to power the tourists to a mammoth 654 for six before they declared their first innings on day two of the opening test on Thursday.

Australia has Sri Lanka three down after opener Usman Khawaja’s first double century and a ton on debut by Josh Inglis helped the tourists to 654-6 declared in the first match on Thursday.

Sri Lanka is staring down the barrel at 44-3 after Australia achieved its largest ever total in Asia — 654-6 declared — on day two of the first test in Galle.

After what was a batting collapse on Day 2 for Sri Lanka, the home side will be looking to pose a better answer in front of the Australia bowling attack featuring the likes of Mitchell Starc and Nathan Lyon.

Australia may be about to enter a new era of overseas Test cricket on free-to-air television as Seven prepares to broadcast the Sri Lanka series starting this week, a harbinger of future bidding for matches in India and elsewhere.

FOUR! SMOKED! In full control this time. Sri Lanka vs Australia Live Score: Sri Lanka Kamindu Mendis 14 (28) Dinesh Chandimal 9 (33) Australia Mitchell Starc 1/10 (5) Sri Lanka vs Australia Live Score: Sri Lanka Dinesh Chandimal 9 (33) 1st Test (Day3) of Australia tour of Sri Lanka,