The registration window is open until September 11, but the Conmebol deadline for the quarterfinals ends before that. This means the Flamengo must act quickly to bring in new players, with the team facing Independiente del Valle in the next round.

The sale of Plata to Dynamo Moscow may help the Flamengo bring back Luiz Henrique from Zenit, as well as other players who are negotiating their exits. However, if reinforcements arrive after the initial deadline, they can only be registered in a potential semifinal of the tournament, until October 9.