Mitchell McClenaghan will miss New Zealand's second one-day international with Pakistan after suffering a hairline fracture above his left eye.
McClenaghan was forced to retire hurt during Monday's opening match of the series when a bouncer burst through the gap in his helmet in the final over.
That saw him leave the pitch having scored 31 off 18 balls, the 29-year-old unable to bowl for Kane Williamson's side in their 70-run win.
The fast bowler posted a picture of his injured eye on Twitter after receiving treatment in hospital as the Black Caps took a 1-0 lead in three-game series.
"Thanks for all the concerns," he tweeted. "Everything is as good as it can be just a few broken bones. Great win for the boys!"
McClenaghan's efforts with the bat helped New Zealand score 71 runs in their final five overs.