The White House provided no updates on Monday about Phoenix Mercury centre Brittney Griner

who has been detained in Russia since February.

Ms Griner, 31, is believed to be in prison on drug charges

She could face up to 10 years in prison if convicted. Ms Griner is widely seen as the best female basketball player of all time.

She is one of just a handful of players to have won a college championship, WNBA and EuroLeague titles and an Olympic gold medal

Since 2015 she has played for a Russian team during the WNBA off-season.

"All of her accomplishments is far ahead any male counterparts that you could really think of," said Melissa Isaacson

a sportswriter and professor at Northwestern University in the US state of Illinois.