Mani, who is in Lahore, said he got the feeling that perhaps PCB was rushing things to get the banned pacer, Muhammad Aamir back into the national team.
"I would caution the PCB to tread carefully in this issue because first it has to be satisfied completely the players who are allowed back into cricket after serving punishments for spot-fixing have totally reformed themselves and secondly they are not a threat to the other players," he said.
Mani said he agreed with Pakistan's former captain Rameez Raja that allowing back tainted and guilty players back into cricket could send a wrong message to others.
"I just feel that the PCB should take its time in dealing with the cases of Aamir, Salman Butt and Muhammad Asif. Because it is not going to be easy for these players to get back into cricket," he added.
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"The ban periods of these three players will end late next year so there shouldn't be a hurry on anyone's part. First let them complete their bans."
Mani said the PCB would have to see what impact the presence of these players could have on others in the dressing room or in domestic cricket.
"Cricket is a great sport and I personally feel strongly about those who indulge in corruption in cricket.