Hiroti replaces injured Ramien as Sharks aim for a top-four finish, starting in Saturday's match against the Raiders.
Cronulla coach Craig Fitzgibbon has backed Mawene Hiroti to fill the void left by injured centre Jesse Ramien as the Sharks look to get their top-four quest on track.
Ramien suffered a season-ending pectoral injury in last week's shock loss to the Dragons and underwent surgery on Thursday.
Hiroti has filled in on both sides of the field throughout the past couple of years when Ramien or KL Iro were unavailable, but now gets a long-term shot at his preferred right centre starting with Saturday's clash with the Raiders.