Bangladesh slumped to a 39-run defeat in the opening T20, undone by the Tector brothers’ clean striking and a disciplined Irish attack that held its nerve through heavy dew.

The Tigers, now on a four-match T20I losing streak, never recovered from a disastrous start to their chase of Ireland’s 181 in Chattogram on Tuesday.

Ireland’s innings was bookended by the Tector brothers. Tim’s explosive 19-ball 32 launched them forward after Paul Stirling’s early fours, and Harry’s unbeaten 69 off 45 balls, laced with five sixes, powered them to a commanding finish.

But the match turned decisively during Bangladesh’s chase, when the Irish bowlers attacked early and never let go.

The slide began immediately.

Matthew Humphreys removed Tanzid Hasan in the opening over, and Mark Adair — back in international cricket after knee surgery — produced a wicket-maiden to unsettle the hosts further.

Litton Das, caught attempting a risky cut, departed for one. Adair then dismissed Parvez Hossain Emon, leaving Bangladesh reeling at 5 for 3 inside four overs.

Vice-captain Saif Hassan briefly broke the shackles with the side’s first boundary but was bowled by Barry McCarthy, following Adair’s superb opening burst of 2 for 3 from two overs.

Towhid Hridoy launched a spirited counterattack as the asking rate ballooned to 12 an over. He struck Josh Little over mid-off, peppered Gareth Delany square on the off side, and combined with Jaker Ali to lift hopes with back-to-back sixes in the 10th over. But Jaker’s dismissal for 20 stalled momentum again.

Humphreys returned to dismantle the lower order in a dramatic final over, taking three wickets despite struggling with the dew-soaked ball.

Hridoy’s composed half-century and his 48-run stand with Shoriful Islam came too late, and, despite a few dropped catches, the visitors closed out the game in commanding fashion.

Earlier, Tim’s flurry of fours against Shoriful Islam set up Ireland’s surge.

Harry continued the assault after Tim’s dismissal, clearing the ground repeatedly — three times off Shoriful alone — while Curtis Campher added a lively 24.

Two more towering blows over long-on in the final over sealed Ireland’s competitive total.