However, the development effectively rules him out of the entirety of the Lahore leg of the series against England, and also leaves him a significant doubt for the forthcoming tour of New Zealand, which is due to get underway in Christchurch on October 7, as preparation for the T20 World Cup.
The Pakistan squad leaves for New Zealand on October 3 to play a T20I tri-series also featuring Bangladesh, with the final on October 14. They then depart for Australia for the World Cup, where, after a pair of warm-ups - including against England - they play their first group game in Melbourne on October 23 against India.
Afridi, who has been undergoing treatment in London for a knee injury, is expected to be available for Pakistan for the World Cup.