It had all started so promisingly. Aaron Finch and Usman Khawaja had started the Justin Langer era so positively. But then it all unfolded in spectacular, and hauntingly all-too-familiar fashion.

Finch and Khawaja had survived a tricky spell in the Dubai shadows on the second afternoon, then prospered under the blazing sun on the third morning. A makeshift opening pair – Khawaja has made his Test career at No.3 and Finch had spent his first-class tenure in Victoria's middle order.

But any fears evaporated as quickly as a cool drink left in the Arabian sunshine as first Finch, then Khawaja, glided past the half-centuries, and took Australia to lunch with all 10 wickets intact.

What happened after lunch, once their partnership had reached 142, saw Australia lose all 10 wickets for just 60 runs.

It was the fourth time in the past seven years Australia has collapsed to the tune of 10-60 or less. Here's how the latest black chapter in Australian Test cricket unfolded (in AEDT):

8.09pm: 1-142

Finch c Shafiq b Abbas, 51.4 overs

Finch had played well to reach 62, hitting straight when full and putting away the bad balls when they came. And when Mohammad Abbas pitched up not long after lunch, Finch walloped a drive out of the middle. Unfortunately for the Australian, Pakistan captain Sarfraz Ahmed had expertly placed a fielder at short-mid-on, and Asad Shafiq took a sharp catch low at his left ankle to end the Victorian's maiden Test innings.

Image Id: 2451ABCDC93943BC824CD73CA6CF15EC Image Caption: Finch is caught by Shafiq // Getty

8.45pm: 2-160

Shaun Marsh c Shafiq b Bilal, 59.2 overs

Shaun Marsh, elevated to No.3 in this new-look Australia side, entered the Test match with a reputation of one of the nation's premiere players of slow bowling. Here, however, he encountered Pakistan's 33-year-old debutant off-spinner drafted in specifically to attack the left-handers in the Aussie line-up. Bilal flighted it up, Marsh was on the front foot driving, and the edge flew to the slips catcher to send Marsh on his way for seven. Four of Marsh's last five dismissals to spin in Test cricket have been caught in the slips.

8.56pm: 3-167

Khawaja c Imam b Bilal, 61.6 overs

Usman Khawaja entered this Test series intent to dispel 'perceptions' about his ability to play spin. And for 174 balls he did pretty much just that, playing an assured innings, posting his highest Test score in Asia, and even confident enough to reverse sweep for consecutive boundaries. But facing Bilal, Khawaja appeared to have pre-meditated a paddle sweep with men around the bat. Extra bounce caught him off-guard and a top edge popped up for the simplest of catches for Imam as Khawaja exited with 85 to his name.

Image Id: CFBC4479F5384E2CACBF8F95EDF3F3CC Image Caption: Bilal salutes Khawaja's exit // Getty

9.11pm: 4-171

Head c Sohail b Bilal, 65.3 overs

Image Id: 5456797C57194A7B80733C96B3B41812 Image Caption: Travis Head edges to slip // Getty

Starting your Test career in these circumstances was never an easy proposition, and South Australia state captain Travis Head never looked comfortable. The left-hander was at Bilal's mercy and on his ninth ball he planted the front foot down the pitch and drove hard at the ball. Haris Sohail took a sharp catch going to his left as Head's Test career started with a duck.

9.15pm: 5-171

Labuschagne c Imam b Bilal, 65.5 overs

In hindsight, batting two Test debutants together in the middle order is something Australia's selectors may reflect back on. Marnus Labuschagne, who bolted into this XI and had impressed with his bowling and fielding in the first innings, was dismissed for a second-ball duck to be Bilal's fourth wicket. Labuschagne watched carefully but picked the line a touch early, as Bilal's off-spin took just enough turn to catch the inside edge of the Queenslander's bat and gift the simplest of catches to Imam under the lid.

Image Id: C4F4218BCC3340648BE839312F95C810 Image Caption: Marnus Labuschagne is caught second ball // Getty

10.09pm: 6-183

Mitch Marsh lbw Abbas, 74.3 overs

Australia's new leadership duo had seen the team through to tea - but only just, with Marsh dropped by Yasir Shah off a fairly straightforward return chance. It proved only a temporary reprieve as on the resumption of play, the wickets began tumbling again. Marsh went back when forward may have been a better option, and was caught deep in the crease as the reverse swinging ball rapped him on the pads, plumb.

Image Id: 36E40386EAA04169A4982F9800CF3792 Image Caption: Marsh is trapped lbw by Abbas // Getty

10.14pm: 7-183

Paine c Imam b Bilal, 75.1 overs

A five-wicket haul for Bilal on debut and Australia's captain couldn't handle the turn as he propped forward and turned the ball directly into Imam's waiting grasp.

10.29pm: 8-191

Starc c Ahmed b Abbas, 78.4 overs

Not spin but reverse swing from Mohammad Abbas to the fore here as Starc prodded an edge behind where Sarfraz took a very good catch diving forward to snaffle the dipping ball.

10.48pm: 9-202

Siddle b Abbas, 82.5 overs

Image Id: 071BFB5796F146E4B97D9413748A149F Image Caption: Siddle bowled by Abbas // Getty

Peter Siddle had already survived a stumping opportunity when he danced down the pitch and missed, saved only by the ball flicking his thigh pad to beat Sarfraz. But he was out of luck when Abbas delivered it full, and got the ball to tail in at the stumps, with an inside edge helping it onto the woodwork. Siddle, recalled for his first Test in two years, was knocked over for the seamer's fourth wicket of the innings.

10.53pm: 10-202

Lyon c Imam b: Bilal, 83.3 overs

The procession is all over as Nathan Lyon falls into Pakistan's well-laid trap and he sweeps directly to Imam at square-leg for his fourth catch of the innings (and only one not taken as a close fielder). It's a sixth wicket for Bilal, who had offered it up for Lyon to sweep and the Australian No.11 gladly obliged. Just 32 overs after losing their first wicket, Australia had been bundled out.