NBC Sports is reporting that Yevgenia has bone cracks in her right foot.
http://olympics.nbcsports.com/2017/11/21/yevgenia-medvedeva-foot-injury-figure-skating/
Supposedly she's planning to skate the GPF in early December (if doctors permit it) with Russian Nationals following a couple weeks later. Right now, though, she's in a cast.
Sounds risky to me. I've never heard the term "bone cracks" before, but I can't imagine they're too different than stress fractures. If she keeps skating she could well break a bone less than two months before the Olympics, and we all know what happens if she stops training.