Brittney Griner is not doing so well in Russia ... according to her wife, Cherelle, who says the WNBA star is "struggling" and "terrified" as she awaits her trial in the foreign country.
Cherelle made the comments about Brittney -- who's been detained in Russia on drug charges for over 4 months now -- on Wednesday while speaking to Rev. Al Sharpton on his "Keepin' It Real" radio show on SiriusXM.
"She is a human," Cherelle said.