Hampshire are challenging a regulation that could prevent James Vince from playing for them in the Royal London Cup final on Saturday.

The opening batsman is expected to be named tomorrow in the England squad for the World Cup, which begins with their match against South Africa at the Kia Oval on Thursday week, and an ICC regulation appears to suggest that once players have been selected they cannot play in other competitions.

Hampshire, however, claim that the ruling is open to interpretation and Rod Bransgrove, the club’s chairman, and Giles White, the director of cricket, have taken up the issue with Tom Harrison, chief executive of the ECB, who in turn has approached the ICC for clarification.

Vince scored 33 yesterday as England beat