South Sydney secured their first shut-out victory in 15 years to spoil Cronulla hooker John Morris' 300th NRL game in a 18-0 win at Remondis Stadium on Monday night.
Without Paul Gallen and Luke Lewis (both Origin) and Andrew Fifita, Beau Ryan, Anthony Tupou and Todd Carney due to injury, the Sharks' season of woe continued with Ricky Leutele, Sosaia Feki and David Fifita joining the casualty list.
As solid as the Rabbitohs' defence was in their first clean sheet performance since 1999, the Sharks' pedestrian attack never looked like troubling the scoreboard - Bryce Gibbs coming closest when he was denied for being offside in the first half.
Anchored to last place with half the season still remaining - and the ASADA saga showing no sign of abating - the Sharks don't appear to have the attacking arsenal to turn their plight around.
The Rabbitohs earned an important win without superstar fullback Greg Inglis as they moved back into the top eight.