The win, which came as the 35th from 36 matches this season, also ties him with Rafael Nadal for a record 14th Roland Garros quarterfinals appearance.
Union gained momentum but missed the chance to extend the lead at the half-hour mark after Nico Schlotterbeck pulled wide from tight angle.
In the Changzhou division, Tan Long scored a hat trick to propel Changchun Yatai to a 4-1 victory against Xinjiang Tianshan Leopard.
Domenec Torrent's men are now fourth in the 20-team standings, three points behind leader Atletico Mineiro.
On the Hebei side, Guo bagged a team-high 19 points. Ma Wen and Zhang Yaqi scored 13 and 12 points respectively.
The game was decided with the final possession. After Li Jinjun converted one of two free throws, Shaanxi went up 80-78 with 11.3 seconds remaining. On the ensuing possession, Wuhan's Liang Juanzhi missed a jumper that could have sent the match into overtime.
The men's quarter-finals will also continue on Wednesday with world number one Novak Djokovic facing Spain's Pablo Carreno Busta and Greek fifth seed Stefanos Tsitsipas playing Russian Andrey Rublev. Enditem
Despite the host's dominance they had to be patient as Schalke was able to neutralize the attacks in the opening period.
BEIJING, Oct. 4 (Xinhua) -- Meizhou Hakka clinched an upset victory over Guizhou Hengfeng, making the promotion an extravagant hope for the former Chinese Super League team in the seventh round of China League One, the second-tier football league in China.
NANNING, China, Oct. 3 (Xinhua) -- The 2020 Guilin-Ziyuan international cross country race kicked off on Saturday in Ziyuan County, south China's Guangxi Zhuang Autonomous Region.
In women's actions, top seed Simona Halep took sweet revenge on her opponent from last year's French Open defeat, trouncing American teenager Amanda Anisimova 6-0, 6-1 to progress.