Li Shenglong's fantastic diving header threw SIPG into the second round after collecting Civanildo Souza (Hulk)'s corner kick.
If Djokovic beats Schwartzman in the final, he will win a record 36th Masters title.
Coach Ronald Koeman had told the player, who turned 21 a month ago, that he didn't want him this season. Speaking after the game, which Barca won thanks to a solitary Antoine Griezmann goal, Koeman implied that the youngster would indeed be on his way out.
Latin America is one of the worst-affected regions by the pandemic, accounting for around a third of the confirmed global death toll, which exceeds 900,000.
15th seed Grigor Dimitrov of Bulgaria eased past Italian wildcard Gianluca Mager 7-5, 6-1, while Marin Cilic rallied to beat Kazakhstan's Alexander Bublik 6-7 (4), 6-2, 6-4 to set up a second round meeting with sixth seed David Goffin.
Brazilian forward Alan Kardec was awarded a special jersey to commemorate his 100th CSL appearance in Chongqing before the match.
Gong Kewei of Hubei competes during the javelin throw of Decathlon on Day 2 of the 2020 Chinese National Athletics Championships in Shaoxing, east China's Zhejiang Province, Sept. 16, 2020. (Xinhua/Jia Yuchen)
The Spain international's deal should also be confirmed on Friday, although he won't take part in Sunday's important league fixture which sees Liverpool travel to face big-spending Chelsea. Enditem
Thiago's arrival will give Liverpool further midfield options and variety alongside Jordan Henderson, Georginio Wijnaldum, Naby Keita, Fabinho, Alex Oxlaide-Chamberlain and the veteran James Milner, although Barcelona are rumored to be interested in taking Wijnaldum to the Camp Nou. Enditem
Second seed Karolina Pliskova of the Czech Republic also met little trouble in her 6-4, 6-3 win over Russia's Anna Blinkova.
The sanitary protocols establish, among other measures, that only those who have a negative test for COVID-19 are allowed to enter the playing field and changing rooms.