Dunga announced his squad for September's friendlies against Costa Rica and USA on Thursday and the decision to omit former Selecao skipper Thiago Silva was the subject of much debate.
The former AC Milan centre-half was heavily criticised for his performances and perceived lack of leadership skills during last summer's ultimately shocking World Cup campaign on home soil and, after missing the start of the 2014-15 campaign through injury, lost his place in the Brazil starting line-up.
