DAILY MEDIA WEIGH IN

• Manager: Lopez replaces Berto on Ortiz card May 21, 2012
• Shields, 17, off to Games in women's boxing May 19, 2012
• Mayfield stops Serrano in 5th to keep NABO title May 19, 2012
• Perez, Ramirez latest to join Golden Boy roster May 18, 2012

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