Players will be tested "upon their arrival and will receive their accreditation as soon as the first negative test is returned," Forget said.
After a discussion of around 10 minutes between tournament referees and officials, Djokovic was disqualified from the match.
In the second half, Shanghai launched aggressive attack to pull one back, but their efforts turned out to be fruitless.
A lonely Lutsenko sprinted to the finish and had to wait 55 seconds before the second rider Herrada appeared.
By the time Sainz passed Raikkonen for second place on lap 34, Gasly had a four-second lead at the front, and although the Spaniard gradually reeled in the Frenchman, Gasly held firm to take a fairytale maiden Grand Prix win by just 0.4 seconds.
The first half did not witness any breakthroughs until the last minute before the interval. Paulo Henrique Soares dos Santos's volley on the right side of the box was denied by the left post, but Wang Qiuming contributed a sliding shot in front of the goal to make it 1-0 for Hebei.
SIPG promptly adjusted tactics to catch up in the second half but were still scoreless, only to see Brazilian forward Marcos Vinicius seal the result with a low drive for China Fortune in stoppage time.
The teams are due to meet at Estadio Azteca in Mexico City on September 30, however health concerns and possible quarantine measures have cast doubt over the fixture.
The result at Morumbi stadium marked Sao Paulo's fourth victory in five matches and lifted the Tricolor to second, a point behind Internacional.
Yellow jersey holder Yates survived several attacks to finish in a group containing many of the title favorites, which also helped him secure his leading place in the title race.
Speaking at the Olympic city development forum, Dubi praised the preparations of Beijing 2022 during the current global crisis.