"As you know, an ambassador is being sent after the president signs the relevant decree. So far no decrees have been issued. If and when such decrees are signed, we will inform you," Peskov told reporters answering the question whether Washington has formally endorsed Antonov and when he would be sent to the United States.
If his candidacy is approved, Antonov, a career diplomat who has been with the Foreign Ministry for decades, will be taking over from Sergey Kislyak.
Russia has repeatedly called on the US to stop the "bullying" campaign against Kislyak, adding that he regularily meets US officials as it is his duty.