The article discusses the history of baseball in Mexico, starting with the origins of the sport and origins of Mexican football. The first officially documented Mexican club was Club México in 1887, and the first truly emblematic game was played on March 5, 1899, when the American team "Masters" faced the Mexican “Señores.” The game was still a binational activity, with Mexican and American communities tracking their teams and heroes on both sides of the border. However, the Mexican Revolution changed the tone of the game in 1910, with many foreign residents fleeing the country fearing for their safety. The Liga Mexicana de Beisbol (LMB) became a professional circuit, modeled on the U.S. system, with six teams representing Mexican clubs. The article also discusses the development of professional baseball in the country, as a mature system in its own right.