Penrith Panthers versus Newcastle Knights finished with just 22 men on the pitch, the hosts' loss enabling their top-four rivals to pounce.
North Queensland Cowboys' star man Johnathan Thurston will retire at the end of the 2018 NRL season as planned.
Coen Hess spoiled Sam Thaiday's 300th NRL game with a late try to give North Queensland Cowboys a dramatic derby win.
Wests Tigers piled the pressure on New Zealand Warriors this week, but a strong response has restored a four-point gap to ninth.
Canterbury Bulldogs ended their three-game losing streak on Friday to halt Wests Tigers' pursuit of an NRL Finals place.
Wests Tigers stunned South Sydney Rabbitohs as Robbie Farah was concussed on his 250th appearance for the club.
South Sydney Rabbitohs remain top of the ladder after another commanding performance against Canterbury Bulldogs.
For the first time in 29 years, the Rabbitohs have won eight games in a row. However, an injury to Greg Inglis marred their latest victory.
Just over a week before State of Origin II, there are injury concerns aplenty following wins for the Roosters and New Zealand Warriors.
New South Wales Blues took a series lead in the State of Origin without Blake Ferguson, but the winger continues to impress in NRL.