Injured Kiwi hooker Lance Hohaia has to await scans on his lower leg after being stretched off Telstra Stadium on Saturday night.
The hooker had his leg clipped by a teammate diving to make a tackle and dropped to the ground in agony.
"It was just a pop," Hohaia recalled of the moment he collided with Nigel Vagana. "I knew straight away that something was not normal.
"I am not a doctor so I don't know the story yet. But there are no breaks," he said.
The team flies back to New Zealand on Sunday and the 22-year-old will have a scan on arrival to see what ligament or deep tissues damage there is.
Hohaia was likely to wear the number seven jumper in England but with an injury cloud hanging over him, coach Brian McClennan and his selectors will have to consider other options there, to provide depth if nothing else.
Utility Motu Tony had a strong game for New Zealand A at five-eighth in the curtain-raiser to the test, while halfback Jeremy Smith - a reserve grade grand final winner with Parramatta - could also be an option.
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