Ronaldinho was among the scorers as Flamengo eased to a 4-0 win over Avai on the opening day of the Brasileirao.
Dario Bottinelli broke the deadlock in the 25th minute, before the former Barcelona and AC Milan attacker doubled the lead in the 63rd minute.
Thiago Neves effectively sealed victory six minutes later, with Diego Mauricio adding a fourth three minutes from time.
Galo cruise, Vasco stage late rally
Magno Alves scored twice as Atletico Mineiro opened their account with a 3-0 win over Atletico Paranaense, Francisco Toro getting the other goal.
Vasco da Gama scored three late goals in 12 minutes as they won 3-1 at Ceara.
Cleber Goiano opened the scoring midway through the second half for the hosts, before Bernardo levelled in the 77th minute. The same player then put the visitors ahead two minutes later, with Jeferson adding a third a minute from time.
Santos and Internacional shared a 1-1 draw. Keirrison put Santos ahead before Ze Roberto levelled.
