Usyk extended his unbeaten record by outpointing Anthony Joshua in London in September, taking the Briton’s heavyweight titles in the process.
But that is of no importance to Usyk, according to Krassyuk.
The promoter was asked in an Instagram Q&A: “Has Usyk said anything about Joshua changing trainers for the 2nd fight?”
Krassyuk replied: “He has. He’s said he doesn’t care.” He then added a shrug emoji.
Krassuyk’s comment echoes a sentiment conveyed to The Independent this month in an exclusive interview with Usyk.
When asked for his opinion on Joshua’s gameplan in the first fight and the Briton’s search for a new coach, Usyk replied: “I don’t think about my opponents or their changes.
“I think about myself and how I can become at least a little bit better every day.”
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