Auckland rugby player Kawa Leauma, critically injured in a fall after a European international, may require more surgery.
The 32-year-old reportedly fell eight metres - apparently from a room - after the match between Spain and Holland in Amsterdam. The Spanish forward suffered head injuries.
The latest translated update said "he could undergo surgery again".
Spain's rugby federation asked for "calm and maximum respect given the seriousness of the situation."
"Leauma's wife, who is kept informed at all times about Kawa's state of health, is scheduled to arrive this Wednesday in the Dutch capital from New Zealand," the federation stated.