The duo were selected after PSV Eindhoven defender Alex and Benfica's Luisao were forced to pull out of the 22-man due to injuries.

Dunga told the Brazilian Football Confederation's official website: "They were part of a 40-man list and now I can watch and test them closer."

Fenerbahce's Dracena told GloboEsporte.com: "I am really looking forward to having this chance and I want to profit from it."

Naldo, who has scored six goals for Werder Bremen this term, said: "I'm a bit sad because of my colleagues' injuries, but I cannot hide my emotion with my nomination."

The Samba Boys will face Chile on March 24 before facing Ghana three days later.

Brazil squad: Helton (Porto), Julio Cesar (Internazionale); Ilsinho (Sao Paulo), Daniel Alves (Sevilla), Gilberto (Hertha Berlin), Kleber (Santos), Naldo (Werder Bremen), Juan (Bayer Leverkusen), Lucio (Bayern Munich), Edu Dracena (Fenerbahce); Diego (Werder Bremen), Dudu Cearense (CSKA Moscow), Elano (Shakhtar Donetsk), Gilberto Silva (Arsenal), Josue (Sao Paulo), Kaka (AC Milan), Mineiro (Hertha Berlin), Ronaldinho (Barcelona); Fred (Lyon), Rafael Sobis (Betis), Robinho (Santos), Vagner Love (CSKA Moscow).