IOC Coordination Commission Chair John Coates described the measures as a "milestone" and an "important step" towards delivering a safe and successful Games in 2021.
Napoli also got their new season off to a good start as the Coppa Italia holder dominated Parma 2-0 with Dries Mertens and Lorenzo Insigne on target.
Looking at the 500 days to come, Han named the milestones that Beijing 2022 will meet in the "uphill battle ahead."
At Roland Garros, Djokovic has another record to achieve - becoming the first men's player in Open Era history to win each of the four Grand Slam titles at least twice.
Finding suitable squad replacements appears to be just as stressful as dealing with contract extensions of vital players.
Monday's match also saw Guangzhou R&F edge Dalian Pro 1-0 by Ye Chugui's late goal in the 92nd minute. The three points also helped R&F join the chase for fourth place in Dalian.
Without Kun Aguero, Aymeric Laporte and Ilkay Gundogan, who has been diagnosed with the coronavirus, Pep Guardiola handed a debut to recent arrival Nathan Ake, and young phenom Phil Foden was also in the starting 11.
Philippe Coutinho also has a lot to prove after his loan spell at Bayern, while questions remain over what style of play Koeman will look to impose.
The game changed three minutes into the second half when Machis took the ball at the edge of the Locomotive area and fired a dipping shot into the back of the net.
"This work will continue until the opening of the Olympics," he said. "This crisis requires a lot of flexibilities and sacrifice from all of us.
In the other game in the Chengdu division, Taizhou Yuanda beat Beijing BSU 2-0, and Inner Mongolia Zhongyou defeated Beijing Renhe 2-1.