Rehan Ahmed said his Test debut for England was the best day of his life, after he took two wickets against Pakistan.

Ahmed became England's youngest men's Test player when he started against Pakistan at the National Stadium in Karachi on Saturday.

With England having won the three-match series already, captain Ben Stokes handed the 18-year-old all-rounder a chance to shine.

Ahmed did not disappoint, finishing with figures of 2-89 as Pakistan were bowled out for 304 on day one.

"It was the best day of my life," the teenager told Sky Sports.

"I couldn't have asked for more and it is the biggest blessing sent down to me. I didn't expect to play.

"I just came on this tour to get better but they've given me a chance to play.

"I believe in myself and I've been given the opportunity so I just tried my best. I didn't sleep at all last night. I was very nervous before the first ball but the whole day was good. I felt more relaxed as the day went on."

Ahmed took his first wicket when Ollie Pope caught Saud Shakeel at short leg, and his second came with a brilliant googly that pinned Faheem Ashraf leg before wicket.

It was a day for the spinners, with Jack Leach taking 4-140, while Babar Azam was run out for 78 during one of Ahmed's overs.

England did lose Zak Crawley for a duck late in the final session, with the tourists reaching stumps on 7-1.