9. Ajantha Mendis (Sri Lanka) – 66 wickets
Sri Lankan off-spinner Ajantha Mendis is a very talented bowler who is famously known as a “mystery spinner”. However, he has failed to carry his international career for a long time. He has taken 66 wickets in just 39 T20Is with an incredible average of 14.42. In his T20I career, he has taken three four-wicket hauls and two five-wicket hauls. His best T20I bowling figures are 4-2-8-6 which is also the record T20I bowling figures. Meanwhile, Mendis is also the fastest bowler to complete 50 T20I wickets as he achieved this feat in just 26 T20Is.