Saturday night in Hermosillo, Sonora, Mexico, on the card headlined by the WBO flyweight title eliminator between Giovani Segura and Hernan Marquez, super flyweight David "Tornado" Sanchez improved to 23-2-2 by knocking out Jean Piero Perez (20-7-1, 14 KOs) at 2:49 of the first round. It was Sanchez' 18th win by knockout.
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