Julio César Chávez Carrasco (born February 16, 1986 in Culiacan, Sinaloa), known in the English-speaking world as Julio César Chávez, Jr., is a Mexican boxer, the son of legendary boxing champion Julio César Chávez González and then-wife Amalia Carrasco. Chávez Jr. was born when his father was the WBC world Junior Lightweight champion..