Brazilian coach Mano Menezes highlighted the development of his side after goals from Neymar, Thiago Silva, Marcelo and Alexandre Pato saw his side cruise to a deserved 4-1 win in their opening game of a three-match tour in the United States.
Hercules Gomez got on the scoresheet for the Americans, who rallied late but were unable to add to their tally due to a fine performance from debutant 'keeper Rafael, who made one stunning double-save from Gomez and Terrence Boyd.
"A debut is always something that brings a lot of nerves. He [Rafael] gave positive responses, just like he has been doing at Santos, and that is why he is in the Brazilian national team," he said.
Menezes also stated that he expects a stiff test from Mexico in Brazil's next game on June 3.
"We are going to have a very tough game," he noted. "Mexico are a mature and well-crafted side.
"We are not at that stage yet. We risk a slip-up, we know that may happen and we will have to be ready."
Brazil end their tour of friendlies in the US with a mouthwatering clash against rivals Argentina on June 9.