Complex sentence: Esporte Clube Bahia was founded in 1931, when players from two clubs decided to merge; the two clubs, Associação Atlética da Bahia and Clube Bahiano de Tênis, had decided to discontinue their football divisions.
Split into simpler sentences: Esporte Clube Bahia was founded in 1931, when players from two clubs decided to merge. The clubs, Associação Atlética da Bahia and Clube Bahiano de Tênis, had decided to discontinue their football divisions.