Rehan Ahmed's strong Test debut for England was aided by Ben Stokes' low-stakes approach to his captaincy, believes Stuart Broad.

The 18-year-old became the country's youngest male red-ball debutant, eclipsing Brian Close's 70-year-plus record, after making his bow against Pakistan in Karachi on Saturday.

In the third and final match of England's tour, Ahmed posted figures of 2-89, with only Jack Leach bowling more overs than the spinner as they skittled the hosts for 304 all out.

Broad, who has sat out the trip to Pakistan, suggested the teenager was able to play without pressure thanks to Stokes and coach Brendon McCullum's aggressive style to long-form cricket, crediting their impact as key.

"Leg-spinners can offer such variety," he told Sky Sports. "The bowling deserves a lot of credit.

"With Brendon and Stoksey, the mindset is nothing about run rate and as a young leg spinner, imagine what a mindset that is.

"He wouldn't have felt judged or under pressure; all they are saying is get us that one wicket to open the game up for us. The mindset played beautifully into his hands."

England are looking to seal a clean sweep after winning their first two games, and Ahmed is likely set to play a major part in helping to restrict Pakistan's second innings.

Former captain Michael Atherton believes Ahmed can stake a claim to be a long-term part of Stokes' plans, highlighting his improvement across his spells on the first day.

"We can all imagine what he was feeling at the end of his mark, but he quickly settled and got better," he added. "Temperament is the big thing, and he looks temperamentally sound."