Fast bowler Ruben Trumpelmann took 3-24, including the key wicket of Dewald Brevis, as hosts Namibia defeated a depleted South Africa by 18 runs in Windhoek on Friday in their opening Twenty20 clash in a Tri-Series also involving Zimbabwe.

The United States kept their slim hopes of qualifying for the Super Eights of the T20 World Cup alive with a 31-run against Namibia in Group A.

Opener Ishan Kishan hit a 24-ball 61 to guide holders India to 209-9 against Namibia on Thursday as the hosts warmed-up for their blockbuster clash with Pakistan in the T20 World Cup.

Prolific India opener Abhishek Sharma was discharged from hospital Wednesday after being treated for an upset stomach, teammate Tilak Varma told reporters.