Sam Curran added to England T20I squads as Ben Duckett takes break

England have recalled Sam Curran for their T20Is against South Africa and Ireland, while prescribing an extra week's rest to Ben Duckett after his dramatic loss of form.

Curran has not played for England in any format this year - or under Brendon McCullum's coaching - but has been in excellent domestic form. Across 24 appearances in the T20 Blast and the Hundred this summer, he has scored 603 runs with a strike rate of 154.21 and taken 33 cheap wickets, and has been added to squads for all six of England's upcoming fixtures.

His call-up comes barely 24 hours after South Africa exposed England's overreliance on the part-time spin of Jacob Bethell and Will Jacks in Thursday's second ODI at Lord's. Bethell and Jacks returned combined figures of 1 for 112 in 10 overs, and Curran's addition to the squad gives England more flexibility around the balance of their team.

Duckett, meanwhile, has been handed an additional week off before England's tours to New Zealand and Australia this winter. He has become an all-format regular in the past 12 months and looked utterly out of sorts during an uncharacteristically scratchy innings of 14 off 33 balls on Thursday.

He scored 462 runs in nine innings during England's drawn Test series against India this summer but has only once passed 20 in his 10 innings since - eight in the Hundred (where his top score for Birmingham Phoenix was 49 not out) and two in this week's ODIs. Duckett's absence will likely see Jamie Smith and Phil Salt opening the batting together against South Africa next week, with Jacks or Tom Banton primed to replace Smith in Ireland.

In one final change to their squads, England have also pulled Matthew Potts out of the Ireland T20Is in a move which will allow him to press his case for Ashes selection in the County Championship for Durham. There is a spot available in their squad for Australia after Jamie Overton's decision to quit red-ball cricket, and Potts is a strong contender.

He has slipped down the pecking order across formats and was not even involved in their squads to face India. But Overton's effective withdrawal from the Ashes - and bolter Sonny Baker's struggles on ODI debut - could provide a route back, and England believe he will be better served by playing for Durham in the County Championship than running drinks in Dublin.

Jordan Cox, Curran's Oval Invincibles team-mate, was added to the squad to face Ireland earlier this week but is not due to be involved in the South Africa series. Duckett will stay with the ODI squad for Sunday's dead-rubber in Southampton.

vs South Africa: Harry Brook (capt), Rehan Ahmed, Jofra Archer, Tom Banton, Jacob Bethell, Jos Buttler, Brydon Carse, Sam Curran, Liam Dawson, Will Jacks, Saqib Mahmood, Jamie Overton, Adil Rashid, Phil Salt, Jamie Smith, Luke Wood.

vs Ireland: Jordan Cox, Sonny Baker and Tom Hartley replace Harry Brook, Jofra Archer, Brydon Carse and Jamie Smith; Bethell replaces Brook as captain.