The arrest is said to have taken place in Moscow in February, reports CNN.
WNBA star and double Olympic gold medalist Brittney Griner is suspected of drug smuggling and risks between five and ten years in prison.
SVT Sports expert Nick Rajacic says that the tense political relationship between Russia and the United States makes the situation unpleasant.
- It feels very awful.
No one knows exactly where she is, he says in P1.
Want to get her home
31-year-old Griner is one of America's most successful female basketball players ever.
She belongs to Phoenix Mercury but has for several years played for Russian UMMC Ekateringburg while the American league has a break.
"We love Brittney and support her in this situation.
Our top priority is her safety, mental and mental health and getting her home safely, ”writes Pheonix Mercury in a statement.
"Very worried"
Former WNBA profile Adaora Elonu is also worried about Griner.
- She's been sitting there for a while now.
I'm very, very worried, she tells CNN.