A trio of teenage pace bowlers have been handed England Lions places for the one-day tri-series against Pakistan A and Sri Lanka A. Lancashire' Saqib Mahmood, Sussex's George Garton and Sam Curran of Surrey are part of the 13-man squad which will be captained by Dawid Malan.

The trio, part of the England's Under-19 World Cup squad in Bangladesh earlier this year, are joined in the pace-bowling options by the slightly more senior pair of Tom Curran and Jamie Overton. Sam Curran will join the squad midway through the series so that he is available for Surrey's Championship match against Hampshire.

Worcestershire provide two batsmen in Joe Clarke, who has scored three Championship hundreds this season including a match-winning one against Leicestershire this week, and Brett D'Oliveira, who is also averaging over 50 in the Championship.

Liam Livingstone, the hard-hitting Lancashire batsman, has been called-up alongside Northamptonshire's Ben Duckett and Kent's Daniel Bell-Drummond.

Malan, who was in England's T20 squad for the match against Sri Lanka but did not get capped, is joined by two players who have played for England in the Hampshire allrounder Liam Dawson, who took three wickets on debut against Sri Lanka, and Sam Billings.

The Lions call-ups mean the players will be unavailable for their counties at a time when teams are pushing for knockout places in the Royal London Cup and T20 Blast, but the selectors have done their best to ease disruption and players will be released for T20 Blast matches July 22 which is a day when Pakistan A play Sri Lanka A.

"There is a balance of players who have represented the Lions before, with a few new faces for the future who we feel will benefit from the experience of and exposure to Lions cricket," James Whitaker, the national selector, said. "We also had to be respectful to the counties who have important domestic fixtures, while again balancing that with our own competitiveness, and making sure we can perform well."

Andy Flower, who will be head coach, said: "It is important for the Lions to play home matches in the summer as well as touring during the winter for a number of reasons, and we are grateful to the counties for recognising that if we are going to reap the benefits of playing abroad in the winter, we have to offer the equivalent opportunity to the developing cricketers of Sri Lanka and Pakistan."

"We've had quite a large transition from last winter's Lions squad to the national side, and that means we will have a much younger group. That is going to make this a challenging series against some experienced cricketers from Sri Lanka and Pakistan, but it will provide a great opportunity for our young players to test themselves."

The series starts with Pakistan A facing Sri Lanka A at Cheltenham on July 18 before England play their first match against Pakistan A the following day. Northamptonshire then host two matches on July 21 and 22 before the series concludes in Canterbury on July 24 and 25.