Smart athletes make a point to have spares in case of loss or damage.
De La Hoya won the bout by way of decision after 12 rounds. Boxing and martial arts mouthguards need to be engineered with provisos for maximum oxygen exchange. One way to accomplish this is by eliminating the flange on the lower portion of the bimaxillary mouthguard, which uncovers the mandibular incisors and creates space for breathing. However, barring allergy, its elasticity, resistance to deformation during clenching, and historic use since the beginning of the 20th century give natural rubber a certain appeal to some professional boxers. Julio Cesar Chavez bleeds excessively after receiving a cut under his left eye during his WBC Super Lightweight title bout versus Oscar De La Hoya at Caesars Palace in Las Vegas, Nevada.