Andreescu, the 2019 US Open champion, missed the opening months of the year because of a knee injury before the pandemic forced the suspension of the sport.
The players are due to be tested again on Monday before a decision was made about their availability for the match.
The top four teams at the end of the qualifying tournament will automatically book a place in football's showpiece tournament. The fifth-ranked side will advance to a two-legged intercontinental playoff.
All three are asymptomatic.
Lokomotiv also have the advantage that the season in Georgia is more advanced than in Spain and they currently lie in fifth position in their domestic league with four wins, four draws and three defeats from 11 matches.
The suspense of the match was killed early in the third set as Jiangsu started with a 5-0 run and continued its form by scoring seven consecutive points in a row in the middle of the set.
Qingdao went one player down eight minutes after the break as Yin Yaji collected his second yellow card.
"There is a lot of talk about a tight season and our small squad. I am sure we will have a strong squad with every position doubled up," goalkeeper Manuel Neuer commented.
A month has passed since then and the game will be a good test of Liverpool's ability to defend their title after beating Chelsea a week ago and also of how much Arsenal have improved under Mikel Arteta. Enditem
LONDON, Sept. 26 (Xinhua) -- Mark Selby reached the final at the Snooker European Masters after defeating China's top player Ding Junhui and compatriot Shaun Murphy in Milton Keynes, England on Friday.
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