Injured. It’s someone that is with the traveling group. But read earlier they think it might have been a false positive?
Those rapid results tests, which are saliva-based and employed a lot with sport teams, do seem to give out false positives much more than the swab-up-the-nose version the rest of us generally get (and take 24-48 hours to yield results).
Hopefully that's the situation with this (if there even IS a situation).
And while it's true that athletes are not likely to suffer the more serious effects of this, it does totally disrupt their involvement in the team's preparation (and of course can pose a threat to others near them).