Griner, an American basketball star who had been imprisoned in Russia on drug charges, was traded for Viktor Bout, a Russian arms dealer, Report informs referring to The New York Times.
Bout is already in Moscow, where state television showed him hugging his wife and his mother.
Brittney Griner was expected to arrive back in the US early on December 9 after her release was secured in a swap with a convicted Russian arms dealer, putting an end to her 10 months of captivity in Russia that became a geopolitical bargaining chip between Washington and Moscow.
Griner will probably head to the Brooke Army Medical Center in San Antonio, a facility the US government has used to treat those in need of debriefing or sensitive medical care. There, she will be examined and receive any necessary treatment.