Brazil trained on Friday after qualifying to the Copa America semi-finals.
Brazil has been playing solidly on defense from the start, but has struggled in attack against teams with tight defensive systems.
It was the case against Paraguay on Thursday in their quarterfinal in Porto Alegre, where Brazil needed a penalty shootout to advance after being held to 0-0 despite playing most of the second half with an extra man.
Without the injured Neymar, Brazil has already endured difficulties against Bolivia and Venezuela in the group stage, drawing boos from the local fans. The exception was the match against Peru in the final group game, when Brazil scored early to open up the defense en route to a comfortable 5-0 rout.
Next up for Brazil will be Lionel Messi's Argentina or Venezuela, which meet on Friday in Rio de Janeiro.