"They've probably got their XI in the back of their mind. Every time you get an opportunity to perform you try to take it with both hands," said Hazlewood, who had reduced West Indies to 18/3 with his hat-trick in the fourth over.

"A couple of the quickies who did quite well in South Africa did not bowl in this match. There's a plenty of competition for every spot," he said as the Aussie rested James Faulkner and Nathan Coulter-Nile for the warm-up match alongside the big-hitting David Warner.

ICC World T20: South Africa halt India's winning run in warm-up game

"The one-day World Cup got a little bit longer but here we have got four games in pretty quick time. I don't think there would be as much chopping and changing. We will have to choose according to the conditions," he added.

Hazlewood's hat-trick was not enough as from 72/6, the Windies rode an unbeaten half-century by Darren Sammy and a quick-fire 33 by Carlos Brathwaite to overhaul the victory target of 162 with a ball to spare.

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