VIVA MEXICO AT LAS VEGAS SEPTEMBER 15TH LAS VEGAS HILTON FIGHT CARD FEATURES TWO WORLD CHAMPIONSHIP BOUTS NEWPORT BEACH, CA  – It’s the biggest celebration in the history of Mexico, and on Wednesday, September 15th, at the Las Vegas Hilton, the Mexican Bicentennial will bear witness to some fistic fireworks, as Roy Englebrecht Promotions, in…