LeBron James demanded Biden bring WNBA player Brittney Griner home from Russia, where she has been detained for more than 100 days

• LeBron James on Monday shared a letter urging Joe Biden to get Brittney Griner home from Russia.
• The WNBA star Griner has been in Russian custody since an arrest on drug charges in February.

LeBron James has demanded that President Joe Biden bring Brittney Griner home from Russia, where the WNBA star has been detained for more than 100 days.

"We need to come together and help do whatever we possibly can to bring BG home quickly and safely!! Our voice as athletes is stronger together," he tweeted Sunday night to his 51.4 million followers.

In the same tweet, the Los Angeles Lakers superstar also shared a letter saying Griner faced "inhumane conditions in a Russian prison" and had been "denied communications with her family and loved ones."

"As a decorated Olympian and member of an elite global sport community, BG's detention must be resolved out of respect for the sanctity of all sport and for all Americans traveling internationally. It is imperative that the US Government immediately address this human rights issue and do whatever is necessary to return Brittney home," the letter continued.

"Join us in demanding that President Joe Biden and Vice President Kamala Harris bring Brittney home swiftly and safely by taking action today," the letter concluded, alongside a link to a Change.org petition that has received more than 300,000 signatures calling for Griner's safe return.

The WNBA athlete has been detained in Russia since February 17, when customs agents at a Moscow airport said they found cannabis oil in her luggage. She was in Russia competing for the European powerhouse club UMMC Ekaterinburg, as she has for the past eight years.

Last month, the US State Department officially classified Griner as "wrongfully detained" — a move one expert has said sends a "strong signal that the US government does not believe that there is a legitimate case against her."