The premise of this bubble is simple: Keep those who passed multiple tests just to get access to the Olympics in, keep the rest of the world — and, hopefully, COVID-19 — out. It has worked for the National Basketball Association, the National Hockey League, Major League Baseball, Grand Slam tennis events, college sports, the rescheduled Tokyo Olympics that took place last summer and so much more.
‘I’m still scared to take off my mask’: Inside the bubble life at the Olympics, where China is taking the COVID sports routine to a new extreme
