England 96 for 1 (Crawley 64*, Root 32*) trail Pakistan 556 (Masood 151, Salman 104*, Shafique 102, Shakeel 82, Leach 3-160) by 460 runs
Salman Agha became Pakistan's third centurion to cement their dominant position in Multan, before a chaotic interlude in which England lost Ben Duckett to injury and their captain, Ollie Pope, for a duck left the touring side scrabbling for a foothold in the first match of the series.
Duckett suffered a painful-looking blow to his left thumb taking the catch to dismiss Pakistan's last man Abrar Ahmed - who had already been given two lives - meaning that when England began their innings midway through the evening session, it was with Pope walking out alongside Zak Crawley. Pope only lasted two balls, Aamer Jamal plucking a one-handed screamer at midwicket to further galvanise Pakistan and bring Joe Root, England's designated No. 4, to the middle in the second over.
The riposte, as it often does, came from Crawley, back in the side after missing the Sri Lanka series with a broken finger. He slashed his sixth ball, from Shaheen Afridi, to the boundary and did the same to Naseem in the following over, before taking Afridi for a brace of fours to end the seamer's opening spell. That led to the early introduction of spin - and another statement of intent from Crawley, as Abrar's first over went for 11.
Crawley brought up England's 50 in the 11th, hauling Abrar through the leg side, and he continued to go after Pakistan's legspinner, who claimed 11 wickets as a debutant on the same ground against England two years ago. Two more fours down the ground left Abrar with opening figures of 4-0-31-0, before a ninth boundary, clipped through midwicket off Naseem, took Crawley to a 55-ball half-century.
Beyond a trio of speculative lbw appeals, there was little to encourage Pakistan's attack - as had been the case for England during 149 overs in the field - with Root slipstreaming Crawley to the close in an unbroken partnership worth 92. Although Duckett's availability to bat later in the innings remained unclear, their position looked a little more secure.
It was, nevertheless, a day in which Pakistan put a commanding stamp on proceedings. Saud Shakeel steered the innings during the first forays, quelling England's mini-fightback from the first evening - with a little help from Naseem's cameo at nightwatcher. Salman then set about driving home the advantage on the way to a 108-ball hundred, his third in Tests, as Pakistan reached a position from which they could hope to dictate the course of the match, even against Brendon McCullum's Bazballers.
England's six bowlers all had something to show for their efforts, with Brydon Carse taking his first Test wickets and Jack Leach finishing with 3 for 160. They generally kept at it in the field, although there were signs that five-and-a-half sessions in the baking heat of Multan would take a toll, Jamie Smith missing a simple chance to stump Abrar and Gus Atkinson then dropping the No. 11 after he had skied a chance to midwicket.
England chipped away with two wickets in each session, but Shakeel and Salman ensured Pakistan did not squander the firm foundation provided by centuries from Shan Masood and Abdullah Shafique on day one. The innings progressed in fits and starts but Salman's judicious assault on England's spinners, in particular, helped maintain the hosts' momentum.
Salman was scoreless at lunch, but stroked the first ball after the break through the covers for four - bringing up the Pakistan 400 and signalling his own intentions. He came down the track in the same over to hit Leach through long-off, and was clearly in the mood to get the scoreboard clicking after Pakistan had added only 69 runs during the morning.
His battle with Leach provided a compelling spectacle, as England's most-experienced spinner was taken for four fours and two sixes in a four-over spell. But it almost went awry for Salman, with the first of his sixes coming perilously close to causing his dismissal: Chris Woakes thought he had done a good job as he backpedalled towards long-off, tossing the ball up as he went out of bounds to then return and complete the catch. But after lengthy deliberation and various replay angles, the third umpire, Chris Gaffaney, ruled that Woakes' foot was in contact with the ground outside the rope as he claimed the ball a second time.
Shakeel had been content to play second fiddle, even during his initial partnership with Naseem. He combined with Salman for another fifty stand but was undone by some sharp turn from Shoaib Bashir - a rare unplayable ball during a tough outing so far for the 20-year-old. Drifting into leg stump from round the wicket, Bashir found grip and then the outside edge, the ball deflecting off Shakeel's back leg to Root at slip.
Jamal fell cheaply to Carse but, with Afridi for company, that was the cue for Salman to emerge on another counter. Having moved to his fifty from 71 balls, he reverse-swept Bashir and then took him down the ground, before adding another brace of fours off Leach, followed by a single to bring up 500. In between, Pope added another burned review to the pile with an lbw appeal that was shown to have pitched outside leg.
Pakistan were 515 for 8 at tea, with Salman resuming watchfully before hitting Leach over long-on to move into the 90s. He reached his hundred with a swept single, having scored 59 out of a ninth-wicket stand worth 85, at which point Afridi missed a slog at Leach to be bowled.
England were beginning to look a little frazzled, and their problems had begun in the morning against the unlikely batting force of Naseem, who made his highest score in any format of the game - 33 from 81 balls - and held up a persevering attack for more than 90 minutes. His efforts, which included hitting three sixes during a stand of 64 alongside Shakeel, ensured that there would be no quick route back into the game for the tourists.
With a ball only five overs old, England were hoping to get into the lower middle-order but found Naseem in resourceful - and impish - mood. He was not cowed after being hit on the helmet by Atkinson and went after Bashir and then Leach, the third of his sixes an audacious inside-to-out hit over extra cover. The stand passed 50 and Naseem was outscoring his senior partner by the time he finally became Carse's maiden Test wicket, succumbing to a round-the-wicket barrage via an edge to leg slip.
