"I leave as the team's coach but I will remain cheering for Internacional. This will never change," the 49-year-old Dunga said. "I thank the athletes for their respect and their loyalty, and I wish them success during the remainder of the season."
Dunga's statement was also posted on Internacional's website.
Dunga's replacement was yet to be announced. Internacional said the squad will be temporarily led by former goalkeeper Clemer, the team's under-20 coach. Dunga's assistants also left the club.
Internacional's next match is at home on Sunday against defending Brazilian champion Fluminense, which is eighth in the standings with the same 34 points as Internacional. Fluminense is ahead because it has more victories.
Dunga, whose full name is Carlos Bledorn Verri, left Brazil's national team after it was eliminated by the Netherlands in the quarterfinals of the World Cup in South Africa.
A defensive midfielder who captained Brazil when it won the 1994 World Cup in the United States, Dunga had never coached at any level before he took over the national team in 2006. He accepted the Internacional job earlier this year after spending some time away from football.
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