UPSET! MARRERO KO’S ZAMBRANO IN ONE

Newly crowned WBA Interim Featherweight Champion Claudio Marrero (22-1, 16 KOs) shocked previously unbeaten Carlos Zambrano (26-1, 12 KOs) with a first round knockout in the main event of Premier Boxing Champions on FS1 and FOX Deportes, Saturday night from Sam’s Town Live in Las Vegas.   “There’s so many emotions going through my head…