Chasing 190, West Indies lost openers Chris Gayle (1) and Evin Lewis (8) within the first two overs and failed to overcome the early setbacks as the Sri Lankan bowlers picked up regular wickets in Abu Dhabi Charith Asalanka's batting heroics were backed up by a fine bowling display as Sri Lanka comfortably beat West Indies by 20 runs in their final group game to knock the holders out of the Twenty20 World Cup on Thursday.