Summary The Storm won for the sixth consecutive time this season and have not lost since last July.
SYDNEY (AP) - The Melbourne Storm extended a nine-month winning streak with a 17-10 victory over South Sydney, the only other previously unbeaten team in the National Rugby League.
The Storm won for the sixth consecutive time this season and have not lost since last July.
In Melbourne s first visit to the former Olympic Stadium in Sydney since its 2012 premiership win, halfback Cooper Cronk set up two tries before clinching the match with a field goal with four minutes remaining.
Despite the dominant start to the season, Melbourne captain Cameron Smith said his side has yet to peak.
"Being 6-0 is a pretty good spot to be," Smith said. "The good thing about the way we re going about things is we re not satisfied with the way we re playing at the moment. Obviously we re very pleased with the results, but we ve still got our best footy ahead of us."
On Sunday, Manly moved into second place ahead of South Sydney, also with a 5-1 record, beating Cronulla 25-18, while Jamie Soward s 77th-minute field goal gave the St. George Illawarra Dragons a 13-12 win over Wests Tigers.
Former All Black Sonny Bill Williams starred against his former club to lead the Sydney Roosters to a 38-0 win over Canterbury.
Playing against the Bulldogs for the first time since walking out on the club to pursue a rugby union career four years ago, Williams scored two tries and set up another with his first touch of the ball.
"Emotionally I knew I could drown it out," Williams said of the hostile reception from some of the fans at Sydney Football Stadium.
"I said during the week I understand some of the ill-feeling towards me ... but for myself, it was never about the players that I played with or the fans. I always had a pretty good relationship with them."
On Sunday, the New Zealand Rugby League said Williams suffered a right knee injury in the Bulldogs match and won t be part of the Kiwi side for Friday s test match against Australia in Canberra.
The injury, a recurrence of a previous ailment, forced Williams to have an injection which prevents him from training or playing for at least seven days.
Winger Josh Hoffman s seventh try in three games and second of the match in the 72nd minute gave the Brisbane Broncos a 12-10 win over North Queensland. Newcastle beat Penrith 8-6 with a first-half penalty by Kurt Gidley proving to be the difference in the match.
Winger Edrick Lee scored a late try to give the Canberra Raiders a 20-16 win over the New Zealand Warriors.
