Atlético Nacional is a Colombian professional football club based in Medellín, competing in the Categoría Primera A. The club plays its home matches at the Estadio Atanasio Girardot, which it shares with rivals Independiente Medellín. Founded in 1947, the team's colors are green and white. Nicknamed "El Verde" (The Green) or "Los Verdolagas," Nacional is one of Colombia's most decorated clubs, with numerous domestic league titles. Its greatest achievement came in 1989 when it became the first Colombian club to win the Copa Libertadores, a feat it repeated in 2016. The club is renowned for its successful youth academy and a philosophy of attractive, possession-based football. The modern era has seen Nacional maintain its status as a continental powerhouse. The fan base, known as "La Pasión Verdolaga," is one of the most passionate in South America, filling the stadium with a sea of green.