Although Castillo will need to weigh 135 pounds for only a few seconds when he steps on a scale inside the Agustus Ballroom at Caesars Palace for the official weigh-in at 5:30 p.m. ET June 2 -- the day before facing Corrales at the Thomas & Mack Center in Las Vegas (Showtime, 9 ET/PT) -- the effort to make weight has been his all-consuming goal for the past few months.
The WBC, which is sanctioning the fight, has been sending a representative to Castillo's training camp in the mountains north of Mexico City to check his weight regularly in order to make sure he is coming down slowly and safely.
It's a process Castillo knows is necessary but one he doesn't like.
"It has been very difficult every week having people coming in to check my weight, making sure that I am where I am supposed to be," Castillo said this week on a conference call with reporters, where his weight was topic No. 1. "The day of the weigh-in is one day before the fight and I know I am going to make the weight, but it has been difficult. It has been hard for me.
