The Japanese capital is expected to welcome 11,000 athletes at the end of July, when it holds the summer Games postponed from last year because of the virus, but is not currently considering wholesale quarantine for them.
Speaking on the sidelines of the Australian Open, the first major Grand Slam event to host crowds, the chief executive of Tennis Australia told Reuters that his experience of organizing the contest suggested the Olympics needed rigorous quarantine measures.
It took a grueling effort by his 600-strong team over the last 11 months to get the year's biggest sporting event, the Australian Open, ready for crowds amid the pandemic.
That included ferrying 1,200 players, officials and media on 17 flights from 8 countries, arranging 14 days of quarantine and more than 30,000 tests, while limiting any chance for the virus to return to a city that stamped it out with four months of hard lockdown last year.
Tiley also suggested that Olympics organizers extend the games to allow for longer quarantine periods, with athletes training in their own accommodation, such as on a university campus, before staged competition periods for each event.