PAKISTAN all-rounder Abdul Razzaq will miss the World Cup after sustaining a suspected fractured knee.

Razzaq, who will not return to action for at least five weeks after the training-ground mishap (he was hit by a stray ball), has been replaced in the squad by Azhar Mahmood.

Pakistan confirmed Umar Gul will play after recovering from a shin injury but doubts remain over new-ball pair Shoaib Akhtar and Mohammad Asif.

The duo, who failed drug tests last year but were subsequently reinstated, must submit to more tests this week.

The rest of the 15-man squad, plus five stand-by players, have already been officially tested by doping officials.

Shoaib and Asif both tested positive for nandralone in September but were cleared after claiming they had not knowingly taken the banned substance.

Reports suggest the pair have had private tests while in London for treatment on their injuries.

Shoaib has knee and hamstring trouble while Asif has an elbow problem.

Pakistan leave tomorrow for Jamaica, where they open their campaign on March 13 against hosts West Indies, before facing Zimbabwe and Ireland in Group D.

"We still have a lot of time and I am very confident that Shoaib and Asif will be available before our first game," captain Inzamam-ul-Haq told a press conference.

"Obviously our chances would decrease if they could not make it."