Just one day after it emerged that WNBA superstar Brittney Griner was sent to Female Penal Colony IK-2, a Russian diplomat said the prospect of a prisoner exchange for her release had “strengthened” and could likely involve convicted Russian arms dealer Viktor Bout.

"I want to hope that the prospect not only remains but is being strengthened and that the moment will come when we will get a concrete agreement," said Russia's Deputy Foreign Minister Sergei Ryabkov Friday, according to Reuters.

"The Americans are showing some external activity, we are working professionally through a special channel designed for this," Ryabkov said. "Viktor Bout is among those …

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