Parramatta big man Ofahiki Ogden crashed over for the first try and things were looking ominous for Canberra when Sean Russell scored to make it 10-0 after 12 minutes.
The Raiders stormed back from 10-0 down to score five unanswered tries on their way to a 38-16 win over the Eels in the Pre-season Challenge on Saturday.
Meanwhile, it was a sloppy start early but the Rabbitohs have flexed their muscles in the second half to kick away from the Dragons for a 28-6 win in the Charity Shield.
Souths wing Braidon Burns crossed for a second half double as the Rabbitohs outscored their rivals 22-0 after the main break.
