 From 1959 to 1960 he pitched for the last time in Puerto Rico for the "Cangrejeros del Santurce".Pizarro signed with the Milwaukee Braves as an amateur free agent in 1956.After going 27–6 with a 2.06 earned run average in the minors, he made his major league debut on May 4, 1957 against the Pittsburgh Pirates at 20 years of age.