Four rapid-fire tries in the second half have helped Cronulla burst St George Illawarra's bubble with an important 34-12 win in their NRL clash in Sydney.
The Dragons were trying to keep the magic alive for a second week running after toppling reigning premiers Brisbane last weekend.
But the Sharks unleashed a 15-minute scoring spree at Ocean Protect Stadium on Sunday, starting with a Briton Nikora angled run, followed by a William Kennedy swan-dive under the posts, then sideline speed from wingers Sam Stonestreet and Ronaldo Mulitalo.
It turned a 12-6 halftime deficit for the Sharks into a 16-point lead - and the Sharks weren't finished.
Cronulla coach Craig Fitzgibbon has had to reshuffle his line-up over the past fortnight with injuries to key players Nicho Hynes (calf), Blayke Brailey (arm) and Jesse Ramien (knee), as well as losing Origin players Addin Fonua-Blake and Nikora.