"We met some difficulties after our key players' departure," Dongguan coach Lin Yaosen admitted.
Inner Mongolia tamed Hebei by 44 points on Friday. Center Li Yueru shot 10 of 12 from the field to finish with a game-high 21 points. Chen Liyu helped with 16. Wei Wei nailed 14 points off the bench.
Sichuan found its formidable game in the second quarter, responding with a 17-2 run and taking a 41-39 lead going into the second half.
"She had a remarkable performance coming off the bench but failed to convert some layups due to a physical slump. She still needs to go through some tests game after game. Hopefully, she can progress deep into the season," said Henan coach Li Jianxin.
"It's because I did a lot of things well. I played more aggressively than the previous days. I went to the net more often, and I hit a lot of winners," added the 12-time French Open champion, who needed only one hour and 35 minutes to see off his opponent.
Jiangsu took to attacking the basket from the paint early on, before going up 20-9 on a 14-0 surge.
As expected, there was no place for striker Edinson Cavani, who has yet to find a new club after leaving Paris Saint-Germain in June. The 33-year-old has not played since March.
"It has been a great season for me and it is my hope that all will be well next year as I focus on the Tokyo Olympics," said Cheruiyot after his victory.
Next up for the 33-year-old is Russia's world No. 16 Karen Khachanov. Djokovic owns a 3-1 lead in the head-to-head record against Khachanov but the latter won the pair's previous encounter in Paris - at the 2018 Paris Masters when the Russian claimed a straight-set win in the final to clinch the biggest title of his career until now.
Argentina will face Ecuador in Buenos Aires on Thursday and Bolivia in La Paz five days later.
Gaston is to challenge third seed Dominic Thiem in the fourth round. Earlier in the day, the Austrian had claimed another straight-sets victory over 28th seed Casper Ruud, beating the Norwegian 6-4, 6-3, 6-1.