Brazil coach Dunga insists his playing rivalry with Argentina coach Maradona will have no bearing on Saturday's World Cup qualifier between the South American giants.
Both players captained their countries to World Cup wins and also played against each other in the 1990 World Cup but this weekend marks their first clash as coaches.
"We each had our history as a player and we are now taking steps as coaches," Dunga told a news conference on Wednesday.
As players, the pair could not have been any different. Dunga was a defensive midfielder while Maradona was a creative forward but the Brazilian said that was also irrelevant.
"Football with 11 Maradonas would not work, football with 11 Dungas wouldn't work," Dunga said. "Each one has his characteristics and way of being, completely different from the other.
"I'm not concerned about the others, I'm concerned with the Brazilian national team."