Winger George North could miss the rest of Wales' rugby tour of New Zealand after hurting a hamstring in the first test loss on Saturday.
North, one of Wales' best performers in the 39-21 loss at Eden Park, pulled up moments from the end.
Wales has two more tests against the All Blacks over the next two weekends.
"George has a hamstring injury and we'll assess him tomorrow to see if he'll be able to play a further part in the tour," coach Warren Gatland said. "It's very disappointing because I thought George was outstanding today, and his battle with Waisake Naholo was a great part of the game."
Wales immediately summoned Cardiff flyhalf Rhys Patchell, and Ospreys winger Keelan Giles, who was pulled out of the under-20 world championship in Manchester, England.
Giles, who scored two tries against Ireland Under-20s on Wednesday, was uncapped, while Patchell has two caps, both from the 2013 tour to Japan.
Earlier Saturday, Scarlets scrumhalf Aled Davies arrived in New Zealand as an injury replacement for Lloyd Williams.
Williams was out of the tour after hurting his ankle in training last week, and due to return home on Sunday with tighthead prop Paul James, who had a calf injury. Aaron Jarvis had already replaced James in the touring squad.
