Fight fans are invited to attend the weigh-in for Saturday's showdown between two-division world champion Ricky "Hitman" Hatton (42-0, 30 KOs) and two-time WBC lightweight champion Jose Luis Castillo (55-7-1, 47 KOs) on Friday at Caesars Palace. Go to Palace Ballrooms I & II, located on the 4th Floor of the Convention Complex (3570 Las Vegas Boulevard South.) Hatton and Castillo will step on the scale at 2:30PM PT. The undercard weigh-in will begin at approximately 3PM PT.