Dunga has been named successor to Luiz Felipe Scolari as Brazil coach, following the country's World Cup demise
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Brazil finished top of Confederations Cup Group A by beating Italy 4-2 in their final pool game in Salvador.
Neymar maintained his record of scoring in each match at the tournament so far by netting his team's second goal.
Both teams went into the game already assured of their places in the last four.
Chelsea defender David Luiz requires surgery after suffering a broken nose playing for Brazil.
The 26-year-old incurred the injury in a collision with team-mate Thiago Silva during the Selecao's Confederations Cup defeat of Mexico.
– Chelsea defender David Luiz
Yes, my nose is broken, but that's part of the game.
Now I'll have to wait until the end of the competition and undergo surgery to fix it.
3 - Brazil have won the Confederations Cup three times (1997, 2005 & 2009), more than any other nation. Supremacy.
Romario on Rio's best feature (L'Equipe): "The women are beautiful. They have bodies like that, nice and sculpted."
England supersub Alex Oxlade-Chamberlain made sure in plenty of time that he collected Brazil star Neymar's shirt at full-time – a naive move that didn't impress our pundit Roy Keane.