South Africa tame cavalier Tigers
Bangladesh were all out for 144 after being put in by South Africa in the Group A game in Cape Town.
The Tigers made an explosive start, passing 50 in the fourth over, but had already lost three wickets by then.
Aftab Ahmed smashed 36 from 14 balls with five fours and two sixes and Shakib Al Hasan added 19 in 14 balls but wickets fell too frequently.
There were seven sixes and 12 fours in total but the innings ended prematurely with three balls unused.
Makhaya Ntini struck with his first ball, a trifle fortunate to get an lbw with his wide angle of attack, but was then hoisted for two sixes as Aftab Ahmed stepped down the track fearlessly.
Tamim Iqbal, who hit two fours in the opening over, miscued to mid-off but the shots kept coming.
Mohammad Ashraful flicked his first ball for six, turned in his crease to steer the next one over short fine-leg for four but then spliced the third ball to mid-on.
Having struck Morne Morkel's opening delivery for four, Aftab lost his off-stump to the next
Duminy, brought in for the rested Herschelle Gibbs, swooped in from mid-off and hit the one stump on view with an underarm throw as South Africa impressed in the field.
He also took an oustanding catch diving backwards in the covers.