Flintoff, 16, was a last-minute addition to the Lions' trip to South Africa earlier this month - his father's maiden tour as head coach - where he featured in the one-off tour match against a CSA Invitational XI in Cape Town, making 4 from three balls in his only innings.

His inclusion continues a startling rise, which began with his precocious displays for Lancashire 2nd XI in April, continued through his multi-format debuts for England's Under-19 teams against Sri Lanka in July, and culminated in his first professional contract with Lancashire in August and subsequent first-class debut.

Brendon McCullum, England's head coach, had flagged the likelihood of Bashir's inclusion in the Lions back in October, with the sense emerging from his recent displays in Pakistan and New Zealand, where he took 17 wickets at 50.58 in six Tests, that his game has not progressed quite as quickly as England had hoped.

"For Bash, the opportunity to be able to get some experience in those conditions could be really vital for us," McCullum said in October, at the conclusion of the Pakistan tour. "That's the beauty of the Lions programme, you have the opportunity to get some cricket into guys. With Freddie there as well now and in charge of the Lions, he's got a very similar view on the game to what I've got, so there'll be consistency of message and that's something that we've got to look at."

Josh Hull, the 20-year-old Leicestershire left-armer who made a surprise Test debut against Sri Lanka in September, has not been included in the main squad but will travel to Australia as he continues his rehabilitation from a quad injury.

Among the batters, Alex Davies is rewarded for a strong season with Warwickshire, for whom he made four centuries in his maiden year as captain, while Somerset's wicketkeeper-batter James Rew is also included.

England Men's Performance Director, Ed Barney, said: "We have rewarded players who have proven themselves at this level and those with significant potential. Matches and tours of Australia are always important and we relish the opportunity to test ourselves against quality opposition. This tour allows us to evaluate performances, refine preparation and continue working with some of the best emerging talent in the country.

"I'm also delighted to see Josh Tongue returning to competitive cricket. Josh has had a challenging time with injuries but is progressing well and will benefit from this tour as he steps up his preparation. We hope this marks the start of a prosperous and impactful return to cricket for him in 2025."