Brazil coach Mano Menezes has responded with disappointment to the behaviour of the fans during his side's 1-0 win over South Africa, and moved to defend star forward Neymar.
The 20-year-old was quick to bemoan the jeers aimed at his team-mates, and his boss has now stuck up for the Santos striker, saying that he was exhausted after a busy summer.
"We're going to work through this calmly, [Neymar] is the best Brazilian player and we can't have our best player treated like that," he told reporters after the match.
"I thought he was very tired, probably because he played a lot of games recently. A player isn't a machine. They need time to recover."
Still at the helm of the side despite their failure to pick up a gold medal at this summer's Olympic Games, Menezes has conceded that criticism was inevitable.
"I think all the criticism is normal. I wish it were different, but it's not up to me to change the behavior of the fans. The team as a whole has its good and bad moments.
"We were collective, and that's when we decided the game."
Brazil's next match is the international friendly versus China on Tuesday.