Russia’s foreign minister says he will propose a time for a phone call about a prisoner exchange.
During a trip to Uzbekistan on Friday, Mr. Lavrov said that he had learned about Mr. Blinken’s statement from television during a visit to Africa this week. He said that any phone conversation between the two men would have to be conducted from his office and that Russia had asked the American side “to clarify the questions they want to discuss.”

Mr. Lavrov said that the question of prisoner exchanges had been discussed during a January meeting in Geneva between President Biden and President Vladimir V. Putin of Russia, and both leaders ordered their government agencies to discuss it further. Mr. Lavrov said that his ministry was not involved in that discussion, but that he would listen to what Mr. Blinken has to say.

The American government has come under increased pressure from relatives of U.S. citizens to get them released from Russian prisons.

Ms. Griner, a W.N.B.A. star who had been playing for a Russian team during the off-season, is on trial in a Russian court and faces a sentence of up to 10 years in prison on drug charges. The 31-year-old athlete was detained in a Moscow airport about a week before Russia’s invasion of Ukraine, and customs officials discovered hashish oil in her luggage.