Leach, Ahmed shine for England on a spinners' day in third Pakistan Test

Spinners Jack Leach and teenager Rehan Ahmed shared six wickets between them as England dismissed Pakistan for 304 Saturday on the opening day of the third and final Test in Karachi.

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Leach grabbed 4-140 and Ahmed finished with 2-89 as Pakistan batters spoiled good starts after Babar Azam won the toss and batted on a turning National Stadium pitch.

But England also fell prey to spin, with mystery tweaker Abrar Ahmed trapping Zak Crawley without scoring before the visitors closed the day on 7-1.

Ben Duckett and Ollie Pope were at the crease with four and three respectively as England trail by 297 runs.

England lead the three-match series 2-0 after winning the first Test by 74 runs in Rawalpindi and the second in Multan by 26 runs.

Skipper Azam top-scored for Pakistan with 78 before running himself out in the post-tea session, while Agha Salman made 56.

But the start of the day belonged to Ahmed - who at 18 years and 126 days old became the youngest England player to start a Test - when he dismissed Saud Shakeel for 23 in his seventh over.

Before Ahmed, Brian Close was the youngest England debutant at 18 years and 149 days when he played against New Zealand in 1949.

Leach then came into the act, breaking a stubborn eighth wicket stand of 48 between Salman and Nauman Ali (20).

In the morning session, Pakistan lost Abdullah Shafique (eight), Shan Masood (30) and Azhar Ali (40) before Azam and Shakeel looked to have steadied the innings with a 45-run fourth wicket stand.

Brilliant bowling effort from England on the opening day in Karachi ??#PAKvENG | #WTC23 | ??: https://t.co/y5SkcqY16s pic.twitter.com/jDRwpC4E2l

But Ahmed had Shakeel caught off a defensive shot at