Dalian pulled one back four minutes later when Salomon Rondon tucked an unchallenged shot into net. The hosts pushed hard for an equalizer in the second half, but none came, and Gao Lin headed home from a free-kick to add a third for Shenzhen in the 74th minute. Enditem
The final chance of the match fell to Madrid's Tony Kroos but the German's effort went wide.
Meanwhile, the men's and women's singles draw was also completed on Thursday, as men's title favourites Rafael Nadal and Novak Djokovic were drawn into different halves, meaning they cannot face each other before the final.
Both sides played with many fouls, with Frankfurt playmaker Filip Kostic unable to continue after a foul from Jordan Torunarigha only 15 minutes into the match.
"We could see sport is coming back slowly but surely," Bach said. "A number of big sports events have been successfully organized recently, including matches of Japanese leagues at the weekend and also some complex events like Tour de France."
Dominic Calvert-Lewis hit a hat-trick as Everton also made it two wins from two games with a 5-2 thrashing of newly promoted West Brom, who have now lost twice and conceded eight times on their return to the top-flight.
"We have very encouraging news about the development of vaccines," he said, adding that experts they talked to have "unanimously" agreed that vaccines will be available at the beginning of next year and in "considerable" doses.
Guoan suffered criticism after earlier fumbling a 3-0 lead against Qingdao, suffering instead a 3-3 tie in the first leg.
Sorloth proved last season what a prolific striker he is, as he scored 33 goals in 49 appearances during his loan spell at Turkish outfit Trabzonspor.
Knowing that a two-goal margin win would secure their place in the Round of 16 alongside Al Ahli and ahead of Al Shorta, Esteghlal pressed hard from the outset and opened the scoring in the 29th minute when Mehdi Ghaedi, assisted by Farshid Esmaeili on the edge of the box, drilled a powerful drive that nestled into the bottom corner despite Al Owais' best efforts to save the shot.
After both sides traded points in the beginning of the second set, Li scored a pair of spikes to initiate Tianjin's 9-1 run, which Hebei failed to cut it until the end of the set.