Japanese boxing is so strong in depth at the lower weights, being a national champion has to indicate you're around fringe world-level at the least. They don't seem to travel too well though, although the real standout stars rarely do, for obvious reasons.

Muranaka looks like an entertaining pressure fighter but not a puncher and naturally much smaller than Yafai. Think his style will suit Yafai, who really proved himself against Conception. Muranaka will have to be granite to get through 12 rounds.

Yafai KO - 4/11, RDs 1-6 - 5/2, 7-12 - EVES?

Yafai PTS 5/2 ... Muranaka is granite?

Can't decide whether to bet the 5/2 on Yafai early KO or 5/2 Muranaka is a rock.