Third T20, St Lucia
West Indies 145-8 (20 overs): Powell 54 (41); Mahmood 3-17, Overton 3-20
England 149-7 (19.2 overs): Curran 41 (26), Livingstone 39 (28); Hosein 4-22
England won by three wickets; lead five-match series 3-0
Scorecard
Third T20, St Lucia
West Indies 145-8 (20 overs): Powell 54 (41); Mahmood 3-17, Overton 3-20
England 149-7 (19.2 overs): Curran 41 (26), Livingstone 39 (28); Hosein 4-22
England won by three wickets; lead five-match series 3-0
Scorecard
Liam Livingstone was dropped three times before taking England to a series-clinching three-wicket win over West Indies in the third T20.
Having been set 146 to win St Lucia, Jos Buttler's side slipped to 37-3 in the powerplay but Sam Curran batted fluently for his 41 from 26 balls to lead the recovery.
England were well placed when he departed but it was left to Livingstone - having been dropped twice by Nicholas Pooran on six and eight, then again by Shimron Hetmyer on 21 - to try and finish the job.
The big-hitting all-rounder took 16 from an Alzarri Joseph over to put the tourists on the brink and although he holed out with four needed, England got over the line with four balls to spare.
Victory gives them an unassailable 3-0 lead in the five-match series, with two matches left to be played.
Saqib Mahmood and Jamie Overton had earlier taken three wickets apiece as England restricted West Indies to 145-8.
Mahmood took three wickets in the powerplay as the hosts slumped to 37-5 in the powerplay and despite a half-century from captain Rovman Powell, they were ultimately unable to post a winning total.
Despite nervy moments in the chase, England did what was required of them and head into Saturday's fourth T20 - also in St Lucia - with the series victory secured.
After a start delayed by 45 minutes because of a wet outfield, England’s bowlers came out firing.
They were given a helping hand by a combination of a mix-up between the West Indies openers and brilliance in the field from Jacob Bethell to run out Shai Hope.
Mahmood removed Evin Lewis in the next over before setting up Roston Chase superbly to have him caught at first slip in the fourth.
Jofra Archer bowled Pooran in between and when Mahmood had Hetmyer caught in the deep, West Indies were reeling.
For Mahmood, who exploited friendly bowling conditions brilliantly, it is now a record-breaking eight wickets in the powerplay in this series - the most by any bowler in a bilateral T20 contest.
Powell led the recovery with a well-paced half-century as he and Romario Shepherd steered West Indies away from immediate danger - both showing the Daren Sammy Cricket Ground was too small for them when they connected cleanly.
The Windies skipper reached his seventh T20 international fifty from 36 balls but just when he and Shepherd would have hoped to accelerated, the latter fell lbw after he was deceived by a superbly disguised Overton slower ball.
Overton removed Gudakesh Motie in the same over and then came back to have Powell caught in the deep to start his next.
There looked like being an element of symmetry to the innings before a late flurry from Alzarri Joseph and Akeal Hosein ensured the hosts batted their overs to post a respectable total.