Local daily The News quoted Pakistan Cricket Board (PCB) officials as saying that it has been decided to conduct a bone scan on Shoaib to determine his claims of back injury which kept him off the field in the series deciding third Test in Rawalpindi.
The report said PCB officials had their doubts after an MRI test, on Shoaib along with other fast bowlers, during the match failed to provide evidence of any injury.
The News quoted medical specialists as saying that no medical test could reveal a muscle problem, if it is not serious. It all depended on the honesty of the players.
The four-member medical team held its first meeting at Lahore on Sunday during which seamer Umar Gul, who helped his team to win the second Test at Lahore, appeared before it.
Gul had an injury even before he was selected to play the second Test and it was aggravated due to long bowling spells at the nets and in the match, the daily said.
Gul was dropped for the crucial third Test due to injury.
Meanwhile PCB chairman Shaharyar Khan said at a media conference in Quetta that strict disciplinary action would be taken against the players who were found guilty by the inquiry commission.