Brazil coach Carlo Ancelotti said that "you don't win a World Cup based on your first match" after the five-time champions laboured to a 1-1 draw with Morocco on Saturday.
The Selecao were in danger of losing their opening game at a World Cup for the first time since 1934 after falling behind to Ismael Saibari's goal in New Jersey.
Vinicius Junior struck a superb equaliser to earn a point for Brazil, but Ancelotti admitted it was not the type of performance expected from his team.
"I think this was a tough match, especially in the beginning. I think the team was a bit anxious and nerves were all over the place," said Ancelotti.