The Barcelona star was restricted to a 10-minute cameo for the national side against Costa Rica, much to his displeasure.
Neymar has warned he will not accept being benched after he was left out of Brazil's starting lineup in Saturday's victory over Costa Rica.
The Barcelona forward, 23, has only recently recovered from a bout of mumps and is reported to have limped off during training with his compatriots on Thursday.
These factors may well have played into Dunga's thinking when the Selecao coach restricted him to a 10-minute cameo in the 1-0 triumph over the World Cup 2014 quarterfinalist, courtesy of Hulk's early effort.