Despite coming in four pounds overweight, former world lightweight champion Diego Corrales will still face Joel Casamayor on Showtime Championship Boxing tomorrow night.   Corrales has been fined $200,000 by the Nevada State Athletic Commission. An additional weigh-in will take place  tomorrow at noon and both fighters cannot weigh more than 147 pounds. If Casamayor defeats Corrales he will become the new WBC lightweight champion. If Corrales wins, Casamayor and David Diaz would fight for the vacant title. More to follow, until then Remember where you heard it first!