RIO DE JANEIRO — The Arena Castelao, the first of Brazil's 2014 World Cup stadiums to be completed, held its first matches on Sunday — a doubleheader in the northeastern Copa do Nordeste. But despite the inspiration of having World Cup record goalscorer Ronaldo in the stands of the stadium opened by President Dilma Rousseff last month the teams managed only one goal to mark the occasion. Fortaleza and Sport drew 0-0 before Bahia beat Ceara 1-0 with a goal from former Brazil and Manchester United midfielder Kleberson. The matches were preceded by a ceremony. — AP