'This was my final curtain bow': Athlete's Olympic dreams crushed by Covid
'This was my final curtain bow': Athlete's Olympic dreams crushed by Covid

Hosting the Olympics during a pandemic presents an unprecedented challenge for Japan, but there has also been a huge impact on the athletes themselves, some of whom suffered from Covid-19.

CNN’s Will Ripley speaks to three athletes and hears some insight from CNN’s Chief Medical Correspondent Sanjay Gupta on how Covid-19 can impact athletic performance.