Sri Lanka boasts of a strong schools cricket structure, with many players entering the national team direct from schools, with little or no first-class experience. The campaign to clean up bowling comes amid tough action by the International Cricket Council to eliminate illegal bowling on the international stage.
Offspinners suspended in recent months include Pakistan star Saeed Ajmal, Sri Lanka's Sachithra Senanayake, New Zealand's Kane Williamson, Zimbabwe's Prosper Utseya, and Bangladesh's Sohag Gazi.
