Australia ruthlessly completed a 159-run victory over West Indies in the first test on Friday as Nathan Lyon swept up the tail after Josh Hazlewood's five-wicket masterclass broke the hosts' resistance on a pitch that deteriorated into a bowler's paradise.

Captain Pat Cummins backed inexperienced opener Sam Konstas to deliver on the international stage despite the youngster's struggles against the West Indies as Australia won the first test in Bridgetown by 159 runs on Friday.

The West Indies has shot out Australia for 180 and discovered how tricky the Kensington Oval pitch is by losing four wickets on day one of the test series opener in Bridgetown.