Rabbitohs rule but Roosters impress South Sydney have extended their lead at the top of the NRL, but the neighbouring Roosters have reminded everyone of their title credentials with an impressive win against Canterbury following a dip in form. The Rabbitohs' 30-10 victory over bottom-of-the-table Parramatta on Sunday pulled them three points clear of second-placed Melbourne, who play at Gold Coast on Monday. With halves Adam Reynolds and John Sutton prominent, Souths overcame an early 4-0 lead and scored five tries to two in the rain at ANZ Stadium. Parramatta coach Ricky Stuart labelled the 13-6 penalty count against his side "a disgrace." Stuart didn't dispute that the Rabbitohs were the better team, but said opposing sides weren't being penalised for the same actions that his team were. The third-placed Roosters moved within one point of the Storm with a 20-18 win over the Bulldogs on Friday. After three ordinary performances, two of which resulted in losses, the Roosters showed some of their early season form. They were sparked by the makeshift halves combination of Daniel Mortimer and Sonny Bill Williams and impressive performances from forward Boyd Cordner and winger Roger Tuivasa-Sheck. The Bulldogs remained in seventh spot after losing for the first time in five games, with captain Michael Ennis saying they needed to use their bye to work on their game. Canberra missed a chance to rise from eighth to fourth with a 17-12 loss to the lowly Tigers at Campbelltown. It was a seventh loss in eight away games for the Raiders, whose next game is away to Souths on Friday. The under 20 game at Campbelltown would not have pleased the code's administrators, who are trying to stamp out on-field violence. A player from the Tigers and Raiders was sent off, one from each club was sin-binned and a fifth player was placed on report. Back in first grade three players were placed on report for a shoulder charges - Roosters debutant Dylan Napa, Canberra's Joel Thompson and the Tigers' Chris Lawrence, who was playing for the first time since suffering a hamstring injury in round seven.