Flick claims only to have 16 quality players, including the trouble-causing cases.
Even though it is only the first game of the campaign, both teams will be desperate to kick off with three points.
Most Chinese internationals are expected to participate in the tournament with all the games to be played behind closed doors.
"I gave everything that I could today on the court. I felt that I progressed a lot. I've played a lot of great matches. I felt that I've tested myself physically, mentally on very difficult stages. It's been great. I want to continue to keep going the same way, enjoy myself," she added. Enditem
Marcos Llorente impressed for Atletico last season and Diego Costa showed signs of life, but the club needs record signing Joao Felix to step forward and show why they paid 120 million euros for him a year ago.
Club under-20 coach Dyego Coelho will manage the first team on an interim basis, starting with a clash against Fluminense at Rio's Maracana stadium on Sunday, the statement said.
The 24-year-old player has penned a one-year contract with the Qatari second division team for an undisclosed fee.
Brighton coach Graham Potter earned praise for his style of football and Adam Lallana's arrival from Liverpool should add guile in midfield, while Crystal Palace remain in the safe but unspectacular hands of Roy Hodgson and their future could depend on what happens with want-away striker Wilfred Zaha.
Both sides struggled to avoid relegation last season and neither look stronger after a summer in which Eibar have lost players such as Fabian Orellana, De Blasis and Gorka Escalante while Rafinha, Jeison Murillo, Fiodor Smolov and Pione Sisto have all left Celta.
The nation's top comprehensive sports gala in 2021 will attract around 14,000 athletes in 501 events across 41 sports.
Aymeric Laporte's positive test for COVID-19 means he could miss the start of the campaign, but the Frenchman is vital to City's options.