Former unified lightweight world champion Juan “Baby Bull” Diaz (42-4, 20 KOs) scored an impressive eighth round TKO over Cesar Vazquez (28-3, 16 KOs) on Saturday night at the Casino del Sol Resort in Tucson, Arizona. Diaz was very active as always. Vazquez tried his best to keep up with him. As the bout progressed, Diaz’ non-stop punches had Vazquez’ head bouncing around like a bobblehead doll. The referee called a halt to the fight in round eight at 2:09.