Club Atlético Lanús is a professional football club from Lanús, in the Buenos Aires Province of Argentina, competing in the Primera División, the top tier of Argentine football. The team plays its home matches at the Estadio Ciudad de Lanús – Néstor Díaz Pérez, famously known as La Fortaleza. Founded in 1915, the club's colors are garnet red and white. Historically considered a modest club, Lanús transformed its destiny in the 21st century, establishing itself as a consistent contender. The peak era arrived under managers Ramón Cabrero and later Luis Zubeldía, winning the 2007 Apertura championship—their first-ever Primera División title—and the 2013 Copa Sudamericana, followed by a runner-up finish in the 2017 Copa Libertadores. The modern squad continues to be competitive, known for a disciplined and tactically astute style of play, regularly qualifying for continental competitions. The fan base is passionate and growing, filling La Fortaleza with an intense and intimidating atmosphere. Club Atlético Lanús has cemented its status as a serious force in Argentine and South American football.