Beijing is preparing to host the 2022 Winter Olympics, but the matches will be different this time.
China is continuing its zero-Covid strategy, as international teams prepare to arrive in China from corners of the world covered by Omicron.
The Chinese authorities hope to manage this by keeping the media, athletes and observers in giant quarantine bubbles, which include more than just homes and event venues. events but also transport links.
BBC China correspondent Stephen McDonell reports from the mountains outside Beijing, where access to the Olympic grounds is now blocked.
