"New Zealand are very good in the aerial game, they are very strong and very physical", said Osorio.
While Russia had more of the ball in the second half and pushed forward with regularity, they created nothing of outcome.
"It wasn't the result that we wanted", said Ronaldo.
Ronaldo is accused by Spanish authorities of having evaded paying 14.7 million euros ($16.5m) in tax and has been summoned to appear in court next month in Madrid.
An the end of the ceremony, the mascot of the 2017 Confederations Cup, charming wolf Zabivaka, descended on an artificial cloud from the top of the stadium and made a first symbolic kick of the ball across the pitch to signal the opening of the tournament.
Portugal's tournament hopes took a blow with a possible broken leg for Guerreiro, who was substituted in the 65th after limping off injured. "There is no reason to be concerned, we have to think about the next match".
Only goalkeeper Igor Akinfeev, who was winning his 100th cap, denied Portugal victory by a greater margin as he made vital saves from Ronaldo and Andre Silva either side of half-time. Fedor Smolov scored in the second half to seal the win for the host nation. But with the 90 minutes up, Mexican defender Moreno rose highest from the final corner of the game to head in the equaliser. "The next match will be very tough because New Zealand will give it their all".
New Zealand narrowly lost 2-1 to Mexico in a friendly in the United States last October and Hudson, 36, believes his side can build on their display in that game. "We managed to change a few things in the second half, and were able to attack". We played against a team playing at home with a home crowd, a team that pressured us but we were better.
"We know how to adapt to different opponents".
Russian Federation cruised to a 2-0 victory over New Zealand in the opening game of the tournament on Saturday and will book a place in the knockout round with a second victory in midweek.