"Dangerous" David Díaz (born June 7, 1976 in Chicago, Illinois, United States) is a professional boxer in the lightweight (135 lb) division. His record is 34-1-1 (17 KOs). He is the current WBC lightweight champion.
He defeated José Armando Santa Cruz for the interim title on August 12, 2006. On February 20, 2007, Diaz was awarded the title when Joel Casamayor, the champion at the time, failed to make the weight limit in a match against Diego Corrales and was eventually stripped. He defeated Mexican legend Erik Morales on August 4, 2007 by a unanimous decision to defend his title.
David Diaz (34-1-1, 17 KO) stated that his June 28, 2008 showdown with Manny Pacquiao in Las Vegas is "is the biggest fight of my life. Bigger than when I won the title. Even bigger than beating a legend like Morales."