It's not like Top Rank is begging him to sign. P.S. But maybe now, after the Andy Ruiz victory, there should be more interest to heavyweights of Vlad's dimensions.
Bashir, I believe, is working in Poland with another Ukrainian HW Volodymyr Katsuk and since Katsuk's next fight was planned earlier than Sirenko's one, he had to stay with Katsuk due to conctractual obligations. I don't think though that Katsuk is going to reach something even on the European level. He clearly lacks power.
Says a guy who claimed Isaac Chamberlain was gonna be the future of the Cruiser division and a huge threat to Usyk. I think I'll ignore your opinion lol