Elsewhere, former Changchun Yatai forward Marinho converted two penalties as Santos upset Gremio 2-1 at home. Diego Souza was on target for the visitors.
Busquets admitted that because of the coronavirus, it was a "strange" season. "We've not had many holidays and pre-season was shorted than usual, we have to adapt," he said, adding that the rule allowing five changes in a game was a help.
Ji scored eight points in the first quarter, leading Daqing to ride on a 6-0 run, but Tianjin managed a 15-14 lead after a defense-driven quarter, and the fierce battle lasted until overtime.
The former Bayern performer claims the team needs to count on a reliable strategy.
The reigning Australian Open champion will contest for her second major title with Polish teenager Iga Swiatek, who needed only 70 minutes to storm to a 6-2, 6-1 victory over Argentine qualifier Nadia Podoroska.
The German coach has spotted a lack of mentality, but didn't mention the loss of efficiency and robustness.
"Defense is quite vital in such an intense game," he noted.
The next round of the 2020 season sees Formula 1 visit the Portimao circuit for the first time for the Portuguese Grand Prix on October 25. Enditem
Tianjin fought a close game for almost three quarters, but Beijing pulled away late in the third before outscoring Tianjin 29-16 in the final 10 minutes.
"It was a tough match. We didn't play at our level in the first quarter, but changed our tactics in zone defense from the second quarter," said Shanxi coach Li Ge.
On Saturday Germany will encounter Ukraine in Kiev in the UEFA Nations League while Turkey will clash with Russia in the Nations League on Sunday. Enditem