I like ergashev. He knows his boxing. The only thing I dont like about him is his oposition. Imho matías is battletested and ergashev is not. On the one hand matías weakest point is his ring IQ. And ergashev is a guy who knows what he's doing in the righ. On the other hand it is very easy to know what you are doing in the ring when the guy hitting your skull is not matías. If ergashev's chin is anything but top quality, he's nothing to do.
I wouldnt be surprised if they filtered them in the national team. Most cubans in the national team are southpaws too. I bet they are filtered.
