Baseball in Puerto Rico
By the 1949-50 season, several new ballparks were built, each containing 6,000 or more seats. The largest new stadium was Ponce's Estadio Francisco Montaner with 9,718 seats. Montaner has the distinction of being the first stadium in Puerto Rico that installed an artificial surface field. The installation of lights, which allowed for night games, further boosted stadium attendances. The Stadium was named to honor Francisco "Paquito" Montaner, one of the greatest Puerto Rican pitchers of all times.
Puerto Rico
Baseball was one of the first sports to gain widespread popularity in Puerto Rico. The Puerto Rico Baseball League serves as the only active professional league, operating as a winter league. No Major League Baseball franchise or affiliate plays in Puerto Rico, however, San Juan hosted the Montreal Expos for several series in 2003 and 2004 before they moved to Washington, D.C. and became the Washington Nationals.