Left-armer Riaz was hit by a ball on the head during a training session on Monday while Hafeez has pain in the right knee.The Pakistan Cricket Board says in a medical bulletin that Riaz was hospitalized and later given the all-clear. It adds that his fitness will be assessed on Tuesday.
Hafeez had complained of knee pain for the last two days and the PCB says "it is likely that he would not be able to take part in the match against the Black Caps."
Pakistan has two points from two matches in Group 2 after it beat Bangladesh before losing to rival India.
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