ISLAMABAD: Pakistani pace spearhead Shaheen Shah Afridi on Sunday underwent appendectomy, a week after a knee injury forced him out of the T20 World Cup final against England in Melbourne. 

The 22-year-old left-arm quick is undergoing rehab after he hurt himself while taking a catch against England and was unable to complete his four overs as his side lost by five wickets.  

"Had an appendectomy today but Alhumdulillah (thank God) feeling better," Afridi said on Twitter, requesting fans for prayers.  

The Pakistan Cricket Board (PCB) earlier said a scan on Afridi's right knee showed no signs of injury, and his discomfort was likely due to "flexion" as he fell after dismissing Harry Brook in the deep.  

"Shaheen will undergo a rehabilitation and conditioning programme that has been designed to strengthen his knee," the PCB said in a statement, adding that the process would take at least two weeks.  

Afridi, who hadn't played for months before the Twenty20 World Cup after injuring the same right knee earlier this year, is in doubt for next month's three-match Test series against England.  

The first Test between Pakistan and England starts in Rawalpindi on December 1, followed by Tests in Multan (December 9-13) and Karachi (17-21).  

Shaheen has been Pakistan's premier bowler in all three formats for the last three years, taking 99 Test, 66 ODI and 58 T20 wickets.