West Indies' bowlers backed Darren Sammy's decision to field with regular strikes that soon had Sri Lanka on the mat at 47 for 5 AFP
Angelo Mathews led a brief recovery by putting on 44 for the sixth wicket with Thisara Perera Associated Press
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But Dwayne Bravo, who had a field day with figures of 2 for 20, had Mathews caught behind to end the resistance AFP
Perera, however, carried on and waged a lone battle before being dismissed off the penultimate ball of the innings for a 29-ball 40 ICC/Getty Images
Perera's knock notwithstanding, Sri Lanka could only manage 122 for 9 as Samuel Badree tied the batsmen in knots to finish with 3 for 12 off his four overs AFP
Jeffrey Vandersay, who took 1 for 11 in four, provided the opening breakthrough for Sri Lanka, getting Johnson Charles to drag one on ICC/Getty Images
But Andre Fletcher was in domineering form and struck six fours and five sixes en route to an unbeaten 84 off 64 balls Associated Press
Andre Russell (20 not out off 8) accompanied Fletcher for an unbroken fourth-wicket stand of 55 that came off just 33 balls as West Indies romped to 127 for 3 and won with 10 balls to spare AFP
