The Serie Nacional is the top professional baseball league in Cuba, established in 1961. It features teams from various provinces and is known for its competitive nature and passionate fan base. The league typically runs from November to April, culminating in a playoff series to determine the champion. Players in the Serie Nacional often aspire to play in Major League Baseball (MLB) in the United States, making it a significant stepping stone for talent. The league has produced many notable players, including José Abreu and Yasiel Puig, who have achieved success in MLB after their careers in Cuba.