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 have enforced the follow-on after ripping through Sri Lanka's tail early on day four of the first Test in Galle.

Sri Lanka lost 5 for 9 to be bowled out for 165 in their first innings just 45 minutes into the day's play. With a lead of 489 runs and with his bowlers well rested, stand-in captain Steven Smith as expected decided to enforce the follow-on.

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Dinesh Chandimal and Kusal Mendis were relieved by the sight of rain, with Sri Lanka being stopped at 136-5, trailing by 518 runs

Sri Lanka were all out for 165 and will follow-on trailing Australia by 489 at the end of the first innings of the opening Test in Galle on Saturday

Catch the live score and updates of Day 4 of the first Test match between Sri Lanka and Australia being played at the Galle International Stadium in Galle, right here.

Sri Lanka's Dinesh Chandimal was waging a lone battle on 63 with Australia ahead by 518 runs and tightening their grip on the first Test before rain forced early lunch Friday.

Mitchell Starc shows his difference as rain and Dinesh Chandimal save the Sri Lankan captain's blushes. Here are the quick hits from day three in Galle.

More forecast rain in Galle is all that stands between crumbling Sri Lanka and an embarrassing early defeat in the opening Test again.

Rain played spoilsport on day 3 when it seemed like Australia would bowl out Sri Lanka cheaply only for the weather gods to intervene. Day 3 ended with Sri Lanka at 136/5 (42 overs), in reply to the Australian score of 654/6 d.