On the scales both men were comfortably able to make weight for the contest weighing in just over 114¾lbs, well inside the 115lb limit.
For unbeaten Filipino Villanueva as for Villanueva he has generally been between 114lbs and 116lbs in recent fights, though has fought as low as 111lbs and as high as 118lbs, and looks in good shape ahead of his first world title bout.
For Arroyo this is a similar weight to what he was last time out when he beat another Filipino foe in the form of Mark Anthony Geraldo. Although he has been as high as 119½lbs he does look comfortable around his current weight. As with the Filipino Arroyo also looked well prepared for this evening's world title bout.
Villanueva and Arroyo meet for the IBF title, but who will remain unbeaten?