The 20-year-old opener was unbeaten on 46 at the interval and skipper Steve Smith was not out four after winning the toss and electing to bat in the first ever day-night test at the Gabba, where Australia is unbeaten since 1988.

The Australians were coasting at 70-0 when left-arm paceman Mohammad Amir (1-22) broke the opening stand by trapping David Warner (32) lbw on the first ball of the 24th over.

Usman Khawaja (4) hit one boundary and faced six balls before stepping down the pitch and chipping leg-spinner Yasir Shah (1-30) to short mid-wicket, where Pakistan skipper Misbah-ul-Haq took a sharp catch to make it 75-2.

Australia retained the same young starting lineup which ended a five-test losing streak with a win over South Africa at the Adelaide Oval last month, rejecting the temptation to play four pace bowlers at the expense of veteran spinner Nathan Lyon.

Renshaw was among the three players who made their international debut in Adelaide, where he was at the crease on 34 when the winning runs were hit.

He was relatively untroubled on a warm, sunny afternoon to start his second test match, facing 86 deliveries and hitting seven boundaries — including a straight drive off Shah that bounced once before skidding past the sightscreen.

Both teams have had time in the No. 1 ranking this year, but both are coming off series losses. Australia lost 2-1 to South Africa — the win in Adelaide following heavy defeats in Perth and Hobart — and a 3-0 series loss in Sri Lanka in July and August.

Pakistan is coming off a series loss in New Zealand, but has Misbah returning and Shah overcame a back problem to take his place in the XI.

Pakistan has never won a test at the Gabba, and has lost its past nine tests in Australia dating to 1995.