Oman won the toss and opted to bowl first against Sri Lanka in the 1st Twenty20 International in Al Amerat, Oman.
Oman and Sri Lanka compete in a two-match series in preparation for the upcoming ICC T20 World Cup.
Sri Lanka suffered a 3-0 series whitewash last time out against South Africa and this will be an important series as they bid to find some form ahead of the T20 World Cup.
The Lankans were comprehensively beaten in all three of the games.
They will be desperate to win and to win well in this opening game with Oman but they come into the series without Wanindu Hasaranga and Dushmantha Chameera as the duo are competing in the Indian Premier League.