Valdez (22-0, 19 KOs), from Nogales, Mexico, will be making the second defense of his WBO featherweight title against NABO champion and No. 1 contender Miguel Marriaga (25-1, 21 KOs), from Arjona, Colombia; Ramirez (34-0, 24 KOs), from Mazatlan, Mexico, will be making his first defense of the WBO super middleweight title against Top-10 contender Max Bursak (33-4-1, 15 KOs), of Kiev, Ukraine.
All In: World Championship Triple-Header - Gilberto 'Zurdo' Ramírez
Andrew Karlov
April 21, 2017, 12:58 p.m.
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