Fast bowler Naseem Shah could miss Pakistan's early Cricket World Cup matches in India next month having injured his bowling shoulder at the Asia Cup.
The 20-year-old right-arm quick could not finish his 10th over during Monday's comprehensive defeat by India in a Super Four match in Colombo and left the pitch.
He missed Thursday's defeat by Sri Lanka after flying to Dubai for scans.
Fellow quick Haris Rauf, who also sat out the Sri Lanka match having sustained a side strain against India, is likely to recover ahead of the 50-over World Cup, which begins on October 5.
Pakistan captain Babar Azam said Rauf's condition was "not bad".
"He's just got a little bit of a side strain, but he's recovering before the World Cup," he said, adding he did not know how long Naseem's recovery would take but was confident the bowler would be able to take part in the World Cup at some stage.
Pakistan, the 1992 World Cup champions, begin their campaign against the Netherlands on October 6 in Hyderabad.