England have not picked uncapped pace bowler Jofra Archer in a preliminary 15-man World Cup squad but have named him in squads for warm-up games against Pakistan and Ireland.
Barbados-born Archer, 24, qualified to play for England in March after a change in residency rules.
He could still make the World Cup squad if he impresses in the warm-up games as changes can be made to it until 23 May.
England play Ireland on 3 May before a five-match series against Pakistan.
“The selection panel has been impressed with Jofra Archer’s performances in domestic and franchise cricket,” said national selector Ed Smith.
“He is a very talented and exciting cricketer.”
England’s Chris Woakes said on Tuesday it would “not be fair morally” to pick Archer for the World Cup, hosted by England and Wales, which begins on 30 May.
Sussex’s Archer has an English father and a British passport. He became eligible to play for England on 17 March thanks to the England and Wales Cricket Board (ECB) bringing in new residency rules on 1 January.
He has played only 14 one-day matches in his career but has impressed in Twenty20 cricket.
Archer, rated one of the most valuable limited-overs players in the world because of his 90mph bowling, athletic fielding and aggressive batting, is currently playing for Rajasthan Royals in the Indian Premier League (IPL), alongside England internationals Jos Buttler and Ben Stokes.
The ECB said players “selected in the squads, who are currently playing in the IPL, will return to England on or before 26 April”.
The preliminary World Cup squad is unchanged from the winter one-day series against the West Indies.
England preliminary World Cup squad:
Eoin Morgan (captain), Moeen Ali, Jonny Bairstow, Jos Buttler, Tom Curran, Joe Denly, Alex Hales, Liam Plunkett, Adil Rashid, Joe Root, Jason Roy, Ben Stokes, David Willey, Chris Woakes, Mark Wood
England 17-man squad to play in Pakistan ODIs:
Eoin Morgan (captain), Moeen Ali, Jofra Archer, Jonny Bairstow, Jos Buttler, Tom Curran, Joe Denly, Chris Jordan, Alex Hales, Liam Plunkett, Adil Rashid, Joe Root, Jason Roy, Ben Stokes, David Willey, Chris Woakes, Mark Wood
England 14-man squad to play in Ireland ODI and Pakistan IT20:
Eoin Morgan (captain), Jofra Archer, Sam Billings, Tom Curran, Joe Denly, Chris Jordan, Alex Hales, Liam Plunkett, Adil Rashid, Joe Root, Jason Roy, James Vince, David Willey, Mark Wood
More to follow.