After a 0-0 draw with Ecuador in their Copa America Centenario opener, Brazil needs a win in its second group-stage match against Haiti.
Brazil coach Dunga believes his side will continue to get better as the Copa America goes on despite their poor start to the special-edition Centenario tournament.
Dunga and Co. were held to a 0-0 draw by Ecuador in their Group B opener on Saturday, an encounter the 52-year-old described as a "bad game."
It could have been worse for Brazil, with Ecuador having a legitimate goal ruled out in the second half at the Rose Bowl in Pasadena, California.