The Pakistan seamer was reported during a stint in the Big Bash last month, where he played for Sydney Thunder
Mohammad Hasnain has been suspended from bowling after his action was found to be illegal.
The Pakistan seamer was reported during a stint in the Big Bash last month, where he played for Sydney Thunder.
He subsequently travelled back to Pakistan to be tested at Lahore's ICC-accredited testing centre, before beginning the Pakistan Super League campaign with Quetta Gladiators.
He played the first three games of their campaign but was left out for Thursday's game against Islamabad United, with captain Sarfraz Ahmed hinting that bad news was soon to follow. "We suffered a setback just before the toss and we had to make a change as Hasnain was in the original team," he said.
A statement explained: "The Pakistan Cricket Board today received a formal and detailed report from Cricket Australia on Mohammad Hasnain's assessment test, which stated his elbow extension for his good length delivery, full length delivery, slow bouncer and bouncer exceeded the 15-degree limits.
"The PCB has discussed the report with its own bowling experts and is confident that the problem can be resolved. The PCB will now appoint a bowling consultant who will work with Mohammad Hasnain so that he can rectify his bowling action and be ready for a reassessment."
Hasnain has featured 32 times for Pakistan (Christiaan Kotze/AFP via Getty Images)
It added that Hasnain "is an asset for Pakistan and one of the very few bowlers to consistently click 145kph", with the decision made in collaboration with the PSL technical committee to rule him out of the remainder of the tournament.
"Instead, he will use this time to work with the PCB-appointed bowling consultant to modify his bowling action so that he can apply for a reassessment and become eligible to return to international cricket as quickly as practically possible.
"As per the illegal bowling action regulations, until Mohammad Hasnain clears his reassessment, he will remain suspended from bowling in international cricket."