Griner's drug trial continued in Russia on Wednesday, and the 31-year-old hooper testified to the reason she returned to Moscow in February despite the travel advisory.

"It's the most important part of the season, after the break. It's playoffs. The whole season I worked, my team worked hard to get to a good position," Griner said, continuing, "There was nothing that was going to change that for me. I didn't want to let my team down.  I did know about the 'do not fly' advisory, but like I said, there was nothing that was going to change my mind on coming back and finishing my duty for my team."

Brittney's alluding to a "Do Not Travel" advisory issued by the U.S. State Department on January 23 ... where they warned of "the potential for harassment against U.S. citizens."

Of course, despite the fact Griner played several seasons in Russia (she's a 3x Russian League champ), she's an American citizen.

BG also addressed the reason for using cannabis ... years of sports injuries.

"Because of my injuries that I've had over the long career of basketball. From my spine, no cartilage in my knee. I was in a wheelchair for four months. I broke my ankle and I also sprained my knee really bad. So I was wheelchair-bound," Brittney told the court.

"The benefits from medical cannabis definitely outweigh the painkillers that they prescribe. The painkillers have really bad side effects. Medical cannabis, there are honestly no side effects that harm you."

Griner admits the cannabis was never supposed to wind up in her luggage ... and she still isn't entirely certain how it happened.

"I still don't understand to this day how they ended up in my bag. If I had to speculate, if I had to guess on how they ended up in my bags, I was in a rush packing. I was recovering from COVID, the stress of packing, making sure I had my COVID tests. Jet lag. And I was in a rush, throwing my stuff into my bag."