He's almost 38, so yeah... he's likely past his best.
Surprised he's only got 18 professional fights, though. Seems his level of activity dropped off considerably over the past 5 years, for whatever reason. So battle-worn he's probably not. Many of his fights have been early knockout victories, also.
The much younger Bivol would have boxing skills and speed on his side in a match vs Artur.
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