Analysis of information sources in references of the Wikipedia article "Mario Thomas" in English language version.
Ultimately, he would scamper up a tree and "broadcast" the action before him, imitating the stylings of Mario Thomas Zapiáin (known as "Don Mario"), the first Spanish-language voice of the Padres (starting when the team became a major-league franchise in 1969), and his sidekick, Gustavo López Moreno. He quickly earned a local reputation for his aptitude in describing athletic contests.