Santos playmaker Lucas Lima has been ruled out of Brazil's international football friendlies against Argentina and Australia in June due to a hamstring injury.
The 26-year-old tore a hamstring in Santos' 1-0 victory over Coritiba in Brazil's Serie A championship last Saturday, reports Xinhua news agency.
Brazil coach Tite did not name a replacement for Lima and will take a squad of 23 players to Australia, the CBF said in a statement on Tuesday.
Brazil will meet Argentina on June 9 at the Melbourne Cricket Club followed by a clash against Australia at the same venue four days later.
Brazil are currently on top of the FIFA world rankings, with Argentina second and Australia 50th.