"This is an exceptional situation," club lawyer Rodrigo Dunshee said in a video posted on Flamengo's Twitter account. "It is very important to end this at the root. The correct measure is to delay this game."
He has been sidelined since September 2 because of a groin injury.
If Djokovic beats Schwartzman in the final, he will win a record 36th Masters title.
Mendy will provide competition for Kepa Arrizabalaga, who is the most expensive keeper in the world after joining from Athletic Club in 2018.
Elsewhere, Osasuna central defender Aridane Hernandez has a muscle injury and will miss their return to their remodeled El Sadar Stadium to take on Levante, while both Eibar and Athletic Club look for their first win of the season in their rescheduled lunchtime kickoff.
BERLIN, Sept. 25 (Xinhua) -- Eintracht Frankfurt took its first win of the season after beating Hertha Berlin 3-1 away from home in the second round of the Bundesliga on Friday.
Jiangsu led 10-2 lead to start the match as spiker Zhang Changning could hardly be stopped, and Shanghai also faced great pressure upon blocks from Xu Ruoya.
Meanwhile, the Barcelona-based sporting press reported on Monday that striker Luis Suarez and the club have reached an agreement to rescind the Uruguayan's contract and allow him to leave on a free contract.
BERLIN, Sept. 24 (Xinhua) -- While the German Bundesliga has witnessed several scandals since its founding in 1963, this week's internal revolt of FSV Mainz players represents a new level of confrontation.
After Tianjin led 2-1 from the third set, both sides fought to tie at 26-26 which Jiangsu saved one match point to level at 2-2, before taking the decisive fifth set.
ROME, Sept. 22 (Xinhua) -- Alvaro Morata is set to start his second stint at Juventus as the defending Serie A champions announced his return from Atletico Madrid on Tuesday.