Colombo - Number-eight batsman Wanindu Hasaranga hit an unbeaten 42 as Sri Lanka beat the West Indies by one wicket in the first one-day international in Colombo on Saturday.

Chasing 290 for victory, Sri Lanka achieved their target with five balls to spare as Hasaranga held his nerve after the hosts slipped to 262 for eight. Sri Lanka lead the three-match series 1-0.