Teenage leg-spinner Rehan Ahmed became the youngest debutant to take five wickets in an innings and set England on course for a victory after three days of play in the third and final Test in Karachi on Monday.

Rehan, who at 18 years 126 days old on Saturday became the youngest ever to play a Test for England, grabbed 5-48 to bundle Pakistan out for 216, giving his team a target of 167 runs with 75 minutes and two days to play.

Openers Zak Crawley and Ben Duckett plundered 87 by the 12th over before spinner Abrar Ahmed dismissed Crawley for 41 and Rehan for 10.

Duckett was unbeaten on 50 and skipper Ben Stokes 10 as England, 112-2 at close, need just 55 runs to inflict a first-ever whitewash on Pakistan on home ground.

England, on Pakistan’s first Test tour in 17 years, won the first Test in Rawalpindi by 74 runs and the second in Multan by 26 runs.

Pakistan fell prey to a spin-assisted National Stadium pitch, losing their last seven wickets for a mere 52 runs with skipper Babar Azam scoring 54 and Saud Shakeel 53.

Rehan built on fellow spinner Jack Leach’s three wickets off just six balls in the morning session by taking his first three off just 17.

He left Australian fast bowler Pat Cummins behind who, at 18 years 193 days old, took five wickets in his debut Test against South Africa at Johannesburg in 2011.

Surprisingly, he had not bowled in the first session, which saw Pakistan reach 99-3.

Azhar’s last stand

Ahmed came on after Azam and Shakeel had put on a valiant rebuilding effort through a fourth-wicket stand of 110 runs.

The pair took Pakistan to 164 before the skipper made an uncharacteristic misjudgement, soon after he reached 1,000 Test runs for the year.

Leach had Pakistan reeling after he knocked over openers Shan Masood and Abdullah Shafique and veteran Azhar Ali, appearing in his last match, with only one run added.

Ahmed oversaw an equally brutal passage of play, removing Azam (54), Mohammad Rizwan (7) and Shakeel in the space of six overs for the addition of a paltry 13 runs.

Mohammad Wasim (two) and Agha Salman (21) also fell to Ahmed.

Pakistan started the fourth day on nearly even footing, with openers Shafique and Masood looking set and erasing England’s 50-run lead without the loss of a wicket.

But any optimism was snatched away by England’s methodical spinners.

Leach bowled Shan — attempting an ill-advised reverse sweep — for 24 which brought down the first cluster of wickets.

Earlier in the day, top-order stalwart Ali was denied a fairytale ending to his storied career that has spanned 97 Tests and 7,142 runs.

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He was beaten by spin as he played a forward push on the final ball of Leach’s momentum-changing double-wicket maiden. His stumps shattered, Ali walked off the field for the last time, ending 12 years as a first-team regular.

The England players clapped as Ali trudged back to the dressing room, while Pakistan’s players raised their bats at the boundary for a ceremonial guard of honour.

Among the handful of spectators were Ali’s wife and two sons.