Atlético de Madrid B is the reserve team of the Spanish La Liga powerhouse Atlético de Madrid. Based in the Spanish capital, the team competes in the Primera División RFEF, the third tier of the Spanish football pyramid. They play their home matches at the Cerro del Espino stadium in Majadahonda. As a reserve side, its primary purpose is to develop young talent for the parent club's first team, adhering to strict rules regarding player eligibility and promotion. The team has been a crucial finishing school for countless stars who have graduated to Diego Simeone's squad and beyond, including legends like Fernando Torres in his youth and more recently players like Thomas Partey and Rodrigo Riquelme. The B team's season is evaluated not on titles but on player progression and maintaining a competitive level in a tough league. While they do not have a traditional independent fan base, matches are attended by dedicated youth football watchers and club staff. Atlético de Madrid B is an essential component of the club's successful model, a direct pipeline from the academy to the Metropolitano Stadium.