Quality T20 form has won promotion for Auckland batsman Mark Chapman and Northern Districts wicketkeeper-batsman Tim Seifert for the remainder cricket's tri-series.
The pair are in for Central Districts batsman Tom Bruce and Wellington wicketkeeper Tom Blundell.
Lefthander Chapman's selection had been foreshadowed by the selectorial advisory note when the T20 group for the three-game series against Pakistan was named.
National selector Gavin Larsen singled out Chapman as unlucky to miss selection.
Chapman, who played two ODIs and 19 T20s for Hong Kong, made 307 runs at 34.11 for Auckland in the domestic T20, with a whopping strike rate of 171.50.