We don't know how good Bivol truly is either. He beat a very slow Barrera and I need more. I don't know who wins between Bivol and Gvozdyk.
A post-fight interview with Gvozdyk: http://boxingtalk.com/pag/article.php?aid=34398 Big props to The Nail for admitting it! It gives me some hope.
A bad sign, though, is that, in his own words, "I don't know what happened" — that means his trainer doesn't have a clue either... It seems like Gvozdyk needs a complete reshuffle of the people who work with him...