Legspinner Shadab Khan has been ruled out of the limited-overs series that Paksitan will play in England in the lead-up to the World Cup. Shadab is ill with a virus, though the exact nature of his illness is not known. A PCB release said "tests revealed a virus that will require treatment and rest for, at least, four weeks". Yasir Shah has been named Shadab's replacement for the England series.

Shadab is also part of Pakistan's World Cup squad. Should he not be fit for the showpiece event, the PCB can make changes to the squad without seeking ICC permission till May 23.

The PCB said further investigations into Shadab's illness will be done in England. "The Pakistan Cricket Board will now set up Shadab's appointment with specialists in England to help him fully recover before Pakistan's World Cup 2019 opener against the Windies on 31 May at Trent Bridge," the PCB release said.

Shadab is the only specialist spinner in Pakistan's 15 for the World Cup. The PCB is also waiting on the fitness of Mohammad Hafeez, who was included while still recovering from the finger injury he picked up during the Pakistan Super League. Hafeez is Pakistan's other major spin option, alongside fellow allrounder Imad Wasim.

The series against England includes one T20I and five ODIs, between May 5 and 19. In addition to the players picked for the World Cup and Yasir, two more players will travel to England for this series: pacer Mohammad Amir and big-hitter Asif Ali.

Squad for the World Cup: Fakhar Zaman, Imam-ul-Haq, Abid Ali, Babar Azam, Shoaib Malik, Mohammad Hafeez (subject to fitness), Sarfaraz Ahmed (capt & wk), Shadab Khan, Imad Wasim, Hasan Ali, Faheem Ashraf, Shaheen Afridi, Junaid Khan, Mohammad Hasnain, Haris Sohail

Additions for England series: Mohammad Amir, Asif Ali, Yasir Shah (Shadab Khan replacement)