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The CBF is still pursuing Real Madrid manager Ancelotti to be its new coach in the long term.
It was their 20th Copa del Rey title and first since 2014.
Brazil's federation issued a statement in February denying a report they had reached a verbal agreement with Ancelotti, who is under contract at Real Madrid until 2024.
Victory means Real return to the top of the LaLiga table on 18 points from six games, two ahead of Barcelona in second.
Real returned to the top of La Liga table after their 4-1 victory.
Real Madrid manager Carlo Ancelotti won the best coach award.
Real will take on RB Leipzig, Shakhtar Donetsk and Celtic in the group stage.
The win also made their Italian coach Carlo Ancelotti the first manager to capture titles in each of Europe’s top five leagues — England, Spain, Germany, Italy and France.
"Everything went well for them while everything we did turned out badly," Ancelotti told reporters after his side's first defeat of the season.
The Italian replaces Zinedine Zidane, who left the La Liga club last month.