Gabriel Barbosa joined Inter Milan in 2016 for €29.5 million, but failed to impress and has been loaned out to Benfica and Santos.
Vinicius is joining up with Madrid's senior team ahead of the 2018-19 campaign, while current Rodrygo has agreed a €54m deal to join next summer.
The Court of Arbitration for Sport says a verdict could come next week.
Chapecoense beat Bahia 1-0 on Sunday to set a club record of nine games unbeaten in Campeonato Brasileiro and maintain their Copa Libertadores hopes.
Brazilian side Botafogo have become the first professional football club in the world to have a YouTuber -- Felipe Neto -- among their shirt sponsors.
Marcelo joined Madrid from Fluminense as an 18-year-old in January 2007 and has since won three La Liga titles and two Champions Leagues.