Today the two men weighed in for their bout and, unlike Sonny Boy Jaro, both men made weight weighing in at 147lbs, the divisional limit.
Whilst both men were the same weight they did look a division, if not two, apart with Shindo literally towering over Okawa and showing off a 14cm height advantage, and also a pretty reach advantage. He'll be hoping to make the most of those advantages when the men get into the ring tomorrow.
For Okawa this will be his first title bout and, at 31 years old it could be his only one, whilst Shindo will be hoping it's second time lucky after having run former champion Suyon Takayama really close last year.
Shindo and Okawa collide for Japanese Welterweight glory
(Image courtesy of boxmob.jp)