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Yeah, Pakistan is well known for its all form of bowlers. Each bowler too have some names to mention their bowling. For Shoaib Akhtar it is Rawalpindi Express. Young players are much in Pakistan, but very few gets the opportunity. I believe there are more academies for cricket, but what is necessary is the playing experience against a team than the net practice. Right now they've got PSL which will surely make more young players shine for Pakistan.
PSL can bring a positive change in identifying new talents and it is evident in the IPL, there are bowlers who i am seeing for the first time who is bowling at really good pace and i usually do not watch the IPL but this year i am watching most of the matches because i entered the competition here and placing bet on matches.
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Abdul Qadir, Saqlain, Mushtaq, Wasim etc were lucky enough to play cricket before the era of this technology and Big-3. Now only players of small boards action are reported, you will never see any talented bowler from big 3 getting banned. Now there is need to have some sort of guidance during initial days of bowler to report his action.
Abdul Qadir and Mushtaq Ahmed are leg spinners and no one could throw a ball bowling leg spin and hence no complaints can be raised even if you wanted and Wasim Akram was a fast bowler who never faced any controversy in his bowling action rather he was praised for his skill level globally. I am not sure which of your favorite players were reported for illegal action

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