High Quality Content by WIKIPEDIA articles! Juan Francisco "Pancho" Herrera Willavicencio was a professional baseball player. He played all or part of three seasons in Major League Baseball for the Philadelphia Phillies between 1958 and 1961, primarily as a first baseman. He also played for the Kansas City Monarchs in the Negro American League, from whom he was purchased by the Phillies in 1954, and in Mexico. Herrera was the first Afro-Latino to play for the Phillies.