Douglas Costa thinks Brazil are in "sensational" shape under new boss Tite as they continue to build for the World Cup in 2018.
Tite took charge last June after the sacking of Dunga, who had failed to reach to reach the last four in either of the 2015 or 2016 Copa America tournaments.
Brazil sit four points clear of closest challengers Uruguay at the top of South American World Cup qualifying, with Bayern Munich winger Costa having played in eight of their 12 games.
The Selecao have won six straight qualifiers since the start of Tite's reign and Costa feels they have "grown up" ahead of the Confederations Cup in Russia this year, an event which will help them to prepare for the World Cup in the same country.
Costa told Omnisport: "I think after the new coach came in, he made big changes and the team grew up.
"Now we are in a sensational way and we have to continue with this form until 2018 in Russia to maybe win the world title.
"This is in the plan which I have for my career and my life, to one day win the Champions League and the World Cup."
Brazil have two qualifiers in March, away to Uruguay before a home match against Paraguay.