Martin Castillo To Defend On Klitschko-Rahman Card

[ProBox1]

World super flyweight champion Martin Castillo of Hacienda Hts., Calif. will defend against former champion Alexander 'Explosivo' Munoz of Venezuela on Top Rank's big 'Seek and Destroy' championship fight card which will feature world heavyweight champion Vitali Klitschko vs. interim champion Hasim Rahman in Las Vegas on Nov. 12. [details]