Travis Head

After bowling out the South Africans for 189 on Boxing Day, Australia started Tuesday's play at 45-1 and piled on another 341 runs.

They were led by Warner in his 100th Test, as he survived some adversity and went on to post 200 before retiring hurt as his persistent cramps worsened in the blisteringly hot MCG conditions.

He reached his 200 in 254 deliveries, joining Joe Root as the only other player to score a double ton in their 100th Test.

Marnus Labuschagne was run-out for 14 following a mix-up during an overthrow, bringing Steve Smith to the middle, and he made his way to 85 off 161 deliveries before edging to the slips as Australia looked to up the run-rate.

Travis Head continued the high-action style with 48 not out from 48 deliveries, capping a 155-run third session to reach stumps at 386-3, leading by 197 runs.

Anrich Nortje was the visitors' most efficient bowler, with the right-arm quick in taking 1-50 from his 16 overs.

Australia could face some headaches with their bowling stocks in the second innings, with Cameron Green being forced to retire hurt after copping a bouncer on the finger, which immediately swelled up and ended his day on six runs.

Green's status for the second inning is in doubt, while Mitchell Starc's finger injury has already ruled him out of the third Test, implying he will not be able to continue bowling.

Labuschagne gives Warner a lifeline in milestone Test

Warner's day could have looked very different had Labuschagne not opted to fall on his sword.

With Warner on 47, he took an easy single, before calling for a risky second on an overthrow. Labuschagne had run through the crease on the first run, and by taking off for a second, it meant whoever was heading to the bowler's end had no hope.

Luckily for Warner, it was Labuschagne who made the turn and charged back unsuccessfully, departing after only 14 runs.

It was Labuschagne's fifth Test run-out, and since his debut no player has more in the format. Root, Babar Azam and Tim Southee all have four.

Aussies handle the heat

With temperatures in Melbourne hovering around 37 degrees Celsius, it was the Australians who handled the conditions in the draining second session.

In a completely one-sided period of play, the duo of Warner and Smith piled on 97 runs without a wicket from the 27-over session, racing to the lead and building a winning platform.

A depleted Australia batted first in Lahore, and their total of 313-7 proved beyond Pakistan's reach, despite Imam-ul-Haq making 103.

Head was the main Australian aggressor with a brilliant 101 from 72 deliveries that propelled the tourists to 171 by the time he was dismissed in the 25th over, with captain Aaron Finch (23) having played a supporting role in an opening partnership of 110.

Ben McDermott provided support with his maiden ODI half-century, though Australia lost three wickets for 21 runs in the space of seven overs as McDermott (55), Marnus Labuschagne (25) and Alex Carey (four) fell.

A flurry from Cameron Green, who hit four boundaries in a knock of 40 not out from 30 balls, gave Australia a competitive total to defend.

Fakhar Zaman was dismissed for 18 in the fifth over of Pakistan's reply, but Imam and skipper Babar Azam steadied the innings before the latter was trapped lbw by Mitchell Swepson.

Babar's steady 57 from 72 balls summed up Pakistan's issues, though, with the hosts unable to match the required run rate early in the innings.

Quick losses of Saud Shakeel (3), Mohammad Rizwan (10) and Iftikhar Ahmed (2) further damaged Pakistan's chances, despite Imam's fine work in reaching his eighth ODI century.

Imam's ton included nine boundaries, but he was then bowled by Nathan Ellis, shortly after Pakistan passed 200 with just five wickets down.

Zampa bowled Hasan Ali and Mohammad Wasim to bring up 100 ODI wickets and then moved onto 101 when Khushdil Shah lofted to Carey, with Swepson rounding things off.

Travis makes headway

It took Head just 70 deliveries to reach his second century in a 50-over match, which is the eighth-quickest in the format by an Australian batter, and the fastest against Pakistan by an Australian in an ODI.

His stay came to an end when he hit Shah to Iftikhar, while he also contributed to the bowling attack with figures of 2-35.

Zampa gets his ton

Dropped in and out of the attack by Finch, Zampa bowled superbly to finish with four wickets for 38 runs, becoming the 18th Australian bowler to take 100 ODI wickets.

While the pick of the bunch for Pakistan was Haris Rauf (2-44), Zampa spearheaded Australia as the tourists kept Pakistan's big hitters Imam and Babar – who became the second-fastest Pakistan batter to reach 4,000 ODI runs – scoring at a slow pace.