According to MLS.Source, Dynamo Kyiv were indeed in talks with the New York Red Bulls over the transfer of defender Aleksandr Sirota.
However, the Kyiv side pulled out of the talks when Denis Popov was injured. Furthermore, the source reports that this is the second time Sirota's trip to the MLS has failed - the Kievians were in talks with an unnamed Eastern Conference team back in 2021, but ultimately rejected an offer of USD 2.8 million.
https://nycfcsource6.wordpress.com/2023/04/27/red-bulls-loan-offer-rejected-for-syrota/