Today the two men took part in their weigh in and both men hit the scales at an identical 134.7lbs.
For Kato weight is slightly lighter than he has been recent bouts, when he's been 135lbs, but is among the lowest of his career. In fact if anything it seems to suggest that Kato has taken this bout incredibly seriously and will not be looking for anything but a win.
As for Yoshino the weight is slightly heavier than he was last time out, but matches up well with his weight from his last bout, and suggests that he's seeing his long term future at Lightweight, a division that he appears to make with some room to spare.
(Image courtesy of boxmob.jp)