Roy Jones Jr. Working On Freeing Brittney Griner From Russian Jail, Open To Traveling To Moscow

Roy Jones Jr., a dual United States/Russian citizen, tells TMZ Sports he's working behind the scenes to free Brittney Griner, even saying he's willing to travel to Moscow to escort the WNBA star home.

"Would I put my life on the line, take a chance to go to Russia to exchange prisoners? Yes, I would," the Hall of Fame boxer says, before explaining why. "Because if [Brittney] was my daughter, I would want somebody to do the same thing for me."

Of course, Griner's been locked up in a Russian jail for around 4 months, and could ultimately face a decade or more in prison ... all because authorities at an airport near Moscow claim the star hooper attempted to bring drugs (hash oil) into the country.

Enter the legendary fighter ... who although born in Florida, also became a Russian citizen in 2015, with the help of Vladimir Putin.

Roy -- who last week also sat down with "Best Womens Boxing Show PERIOD" for a wide ranging conversation about Griner and his career, amongst other topics -- believes the friends he's made in Russia over the years may be in a position to help Griner.

"I had a friend, a couple of my friends that I knew, I called and I asked him 'Is there any way we can try to facilitate?' because I don't do politics. I'm a sports figure and they love me as a sports figure. 'Is there any way we can use my sports influence to possibly can get anything arranged to help get Brittney home?'"

And, Roy says there is a path to bringing Brittney home ... via a "prisoner exchange."

"My friend called and he called me back and he said, 'yes, they said they'd be willing to do a prisoner exchange.' I said, 'Well it's probably rough because the prisoner exchange is probably a real prisoner.' She's not necessarily a person that's a real prisoner but I'm sure that maybe the U.S. will be understanding of this and get her back home because I'd be terrified if my kid was stuck in a foreign country in jail, you know?"

As for the identity of Roy's friend ... he says one of his buddies is very close to Putin.

"One of my guys is like -- he's the right-hand man to the office of Mr. Putin, so he's high up on the political scheme. He's a reporter and he usually does most of the reporting for Mr. Putin so he can go make direct contact with whoever necessary to help me."

FYI, much of the news media in Russia is state-owned.