The bout, which pits reigning champion Amnat Ruenroeng (14-0, 5) up against Chinese boxing star Zou Shiming (6-0, 1) is one of the biggest and most significant bouts of the year so far and thankfully neither fighter struggled with the weight.
The defending champion came in bang on the divisional limit weighing 112lbs. This was the same weight as Amnat was when he won the title, in January 2014 with a decision over Rocky Fuentes, and also the same weight that he was ahead of his clash with the then unbeaten Kazuto Ioka in Japan. Interestingly it's 2½lbs heavier than he was last time out, when he struggled past McWilliams Arroyo.
Shiming was marginally lighter coming in just over 111½lbs, a similar weight to what he was when he beat Luis De La Rosa last July, though lighter than he was for his bout with Kwanpichit Onesongchaigym last time out.
Both fighters will need to make weight again tomorrow morning due to the specific rules of the IBF though neither should have any problems with the same day weigh in.
Both men appeared confident of the win and in the ring tomorrow we're expecting an interesting contest, even if it's unlikely to be a classic.
Showdown at Sands-Zou Shiming Vs Amnat Ruenroeng (Pt 4)
(Image courtesy of Sumio Yamada)