Team Logo. Athletic Bilbao B is a team in the Segunda Division B. They are the reserve squad of Athletic Bilbao. Being a reserve team, they play in the same league system, but they must play at least one division below the senior team. Retrieved from "https://prosportsteams.fandom.com/wiki/Athletic_Bilbao_B?oldid=15800" Categories: Teams in Basque Country Add category Cancel Save Community content is available under CC-BY-SA unless otherwise noted.