"It was very scary," said Shaun Marsh, who hit an unbeaten half-century in the victory.
"It copped him on the side of the cheekbone The main thing is he is OK and can bounce back pretty quickly.
"(Khawaja was) a bit shaken, as you are when you get hit on the head. But he is a tough cookie, Uzzy, and he'll be ready to go."
Khawaja didn't take part in the match again even as Australia went on to register a seven-wicket victory over West Indies in the first of their three warm-up games.
Khawaja is expected to be available for selection for Australia's next warm-up match against England on Saturday.
(This story has not been edited by Business Standard staff and is auto-generated from a syndicated feed.)