Curran noticed the problem after playing for the Chennai Super Kings in their IPL match against the Rajasthan Royals this past Saturday.
Scans revealed the Surrey left-hander’s injury and he will fly home for further tests and a full review with England’s medical team.
With the injury expected to sideline him for several weeks, Curran’s brother, Tom, has been called into England’s squad to replace the 23-year-old.
Surrey’s Reece Topley has been added as a travelling reserve and will join the England party in due course.
England players and management not at the IPL arrived at their Muscat base on Tuesday ahead of the T20 World Cup campaign.
They have warm-up matches against India and New Zealand before kicking off their tournament against the West Indies on 23 October.
© Agence France-Presse
