The 21-year-old replaces Manchester City striker Gabriel Jesus, who has been ruled out of the fixtures with a calf injury.
The organizers also highlighted that reviews will take place after each test event, which would help formulate better working and contingency plans amid the pandemic.
The defending Brazilian and Copa Libertadores champions said they had only nine outfield players available for the top flight fixture at Allianz Parque in Sao Paulo.
A first half goal from new signing Alvaro Negredo and an 83rd minute striker from Jorge Pombo gave Cadiz a 2-0 win away to Huesca in a duel between two newly promoted sides.
Having lost cornerstones such as Thiago Alcantara (Liverpool), Ivan Perisic (Inter), Javi Martinez (Bilbao), and Philippe Coutinho (Everton), Flick intends to update its midfield options.
RIO DE JANEIRO, Sept. 20 (Xinhua) -- Six Flamengo players have tested positive for the coronavirus ahead of the Brazilian club's Copa Libertadores group match against Ecuador's Barcelona SC.
RIO DE JANEIRO, Sept. 24 (Xinhua) -- Flamengo have asked the Brazilian Football Confederation (CBF) to postpone their match against Palmeiras on Sunday after 16 players tested positive for the coronavirus.
Ten minutes later, Giorgi Gabadze was sent off for a second yellow card. However, Granada didn't guarantee its win until injury time, when Molina scored following a cross from Antonio Puertas.
The world and Olympic 3,000m steeplechase champion Kipruto, who missed the opening leg of Diamond League series in Monaco in August after testing positive for COVID-19, will return to action after shaking off the virus.
For its part, Femexfut said it hoped to set up a clash against another opponent on September 30.
The 21-year-old has only made four league appearances for Barca and hasn't taken part in any of the club's three pre-season friendly matches, highlighting that he is not in the plans of new Barca coach Ronald Koeman.