There is also a slight doubt over Martin Odegaard, who returned from loan from Real Sociedad over the summer and was in the starting 11 to face his former club a week ago.
The goalkeeper protected his side from a bigger defeat after neutralizing the chances from Angelino and substitute Christopher Nkunku in the closing stages.
After a goalless first half, Chengdu's Lu Weiyang broke the deadlock with a powerful shot from outside the box in the 61st minute. Brazilian striker Leonardo extended the lead 10 minutes later.
Brazil has the world's second-highest COVID-19 death toll behind the United States, with more than 139,000 fatalities. Enditem
The players are due to be tested again on Monday before a decision was made about their availability for the match.
S10, for the first time, invited the fourth seeds from China (LPL) and Europe (LEC) as a reward for these regions finishing at the top of the global power rankings. Both of these teams will begin their tournaments in the Play-In Stage. Enditem
The road so far has been far from easy, especially given the difficulties created by the global COVID-19 pandemic, which "brought an extra load and challenges" for the organizers, who spared no effort delivering on their promise of a 'green, inclusive, open and clean' Games.
Chelsea were the summer's big spenders and the game was a big test of both their and Liverpool's title credentials, but things swung dramatically Liverpool's way as Andreas Christensen was sent off for pulling Mane back when he was through on goal in the first half injury time.
Beer Sheva now face Czech side Viktoria Plzen in a single-leg match to be played in Israel on October 1, with the winners entering the competition's group stage. Enditem
Guoan suffered criticism after earlier fumbling a 3-0 lead against Qingdao, suffering instead a 3-3 tie in the first leg.
Hertha's head coach Bruno Labbadia made changes and fielded Deyovaisio Zeefuik, Arne Maie and Jhon Cordoba after the restart.