Andrew Johns has taken aim at the Knights for their "terrible defence" during a shock 28-12 opening-round loss to the Raiders.
Despite entering the clash as red-hot favourites, Newcastle came up with a number of disappointing errors and missed tackles in front of their diehard home fans.
The hosts came up with 13 errors and conceded six penalties against Canberra, as well as missing 30 tackles in a surprisingly poor first-up display.