"The pleasing thing is the effort in the team, especially defensively. Any time the Warriors defend well we seem to have a bit of success. That's going to have to continue against the Bunnies because they have good backs with size and a big forward pack."
The Warriors' defence has improved dramatically in recent weeks. They conceded an average of more than 28 points in their first 10 games but have let in only 14.8 in their last five. No team has put more than 18 points on them in the five-game winning streak.
Mannering has often been at the forefront of that, and was particularly impressive against Brisbane last weekend when he made 44 tackles including a handful that snuffed out promising Broncos attacks.
The Rabbitohs possess so many weapons across the park, from their big front row to fullback Greg Inglis, who averages an impressive 168m a game and leads the league for tackle breaks with 75. They also welcome back George Burgess and Chris McQueen and are seemingly on course for their first minor premiership since 1989.
The Warriors have some weapons of their own, including Hurrell who has been a threat since his return to the first-grade side.
The big centre is still vulnerable in defence but a handful with the ball in hand and scored the matchwinners against both Manly and Brisbane and he will be even more important if winger Manu Vatuvei, who has scored 10 tries in 11 games, is forced out of Sunday's game with a shin injury.
Warriors side to play Souths at NIB Stadium, Perth, on Sunday (8.30pm NZT): Kevin Locke, Glen Fisiiahi, Dane Nielsen, Konrad Hurrell, Manu Vatuvei, Thomas Leuluai, Shaun Johnson, Sam Rapira, Nathan Friend, Ben Matulino, Feleti Mateo, Simon Mannering (c), Elijah Taylor, Interchange: Russell Packer, Jacob Lillyman, Todd Lowrie, Dominique Peyroux, Ngani Laumape, Suaia Matagi, Charlie Gubb.