Six Team GBtrack and field team athletes are isolating after a passenger on their flight to the Tokyo Olympics tested positive for Covid-19.
Sportsmail understands that the group does not include medal hopefuls Dina Asher-Smith, Katarina Johnson-Thompson, Laura Muir, Jemma Reekie, Adam Gemili, Andy Pozzi, Elliot Giles, Keely Hodgkinson or Dan Rowden.
Two members of staff have also been affected.
The group were on a flight that landed in Japan on Friday.
The news comes as a huge blow ahead of Friday’s Opening Ceremony and raises further questions over the decision to host the Games during a pandemic.
It is thought that those affected may be able to train should they return two negative tests in 48 hours.
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