Openers David Warner and Matthew Renshaw smashed centuries as Australia coasted to 365 for three against Pakistan at stumps on first day of third cricket test at Sydney.

Renshaw was unbeaten on 167 and middle-order batsman peter Handscomb not out on 40 when the stumps were drawn.

PTV Sports is telecasting the match live.

Earlier, Australian captain Steve Smith won the toss and elected to bat first.

Openers David Warner and Matt Renshaw added 151 runs stand for the first wicket.

Warner smashed a whirlwind 18th test hundred off 78 balls while 20-year-old Renshaw scored his maiden test century.

Warner became the first Australian since Bradman 87 years ago to make a century in the opening session on the first day of a test, and the only batsman to achieve the feat in Australia.

Warner was finally out 20 minutes after lunch, caught behind by Sarfraz Ahmed off Wahab Riaz for 113 off 95 balls with 17 fours.

In contrast to Warner, Renshaw provided the steady foil, fighting back from a head-rattling blow from fast-bowler Amir.

Renshaw so far hit 18 boundaries in his 275-ball knock.

Usman Khawaja was put down on three by Babar Azam in the gully off Imran Khan before he was caught behind off Wahab Riaz for 13.

Skipper Steve Smith, playing in his 50th test, was caught behind cutting Yasir Shah for 24, after scoring centuries in each of the first two matches.

For Pakistan Wahab Riaz bagged two while Yasir Shah took one wicket