WNBA star Brittney Griner's sentence was upheld by a Russian court on Tuesday after it rejected an appeal from the athlete.State of play: Griner made an appearance at the hearing by video from the detention center where she has been held since February, according to CNN.- The court has the option of overruling, reducing or upholding Griner's verdict or sending it back to the lower courts, per CNN.What they're saying: "We are aware of the news out of Russia that Brittney Griner will continue to be wrongfully detained under intolerable circumstances after having to undergo another sham judicial proceeding today," National Security Adviser Jake Sullivan said in a statement Tuesday.- "In recent weeks, the Biden-Harris Administration has continued to engage with Russia through every available channel and make every effort to bring home Brittney as well as to support and advocate for other Americans detained in Russia, including fellow wrongful detainee Paul Whelan," he added."