The criminal trial for alleged marijuana possession against Phoenix Mercury center Brittney Griner in a Russian court started last week.
The seven-time All-Star entered her plea to the charges early on Thursday.
The news comes one day after it was revealed that Cherelle Griner, Brittney Griner's wife, had a conversation with President Joe Biden and Vice President Kamala Harris about efforts to bring her back to the United States.
The two-time Defensive Player of the Year has spent four months in detention in Russia on suspicion of bringing vape cartridges containing hashish oil into the country.
According to reports, Griner pleaded with the court for leniency on Thursday while claiming that she "inadvertently" imported the hashish oil into Russia.
But there was no intent. I didn't want to break the law," Griner told the judge in English, which was then translated into Russian for the court.
Early in May, the American government declared that Griner was being imprisoned unlawfully.