Cronulla delivered an impressive performance, defeating Manly 48-12 and retaining the Steve Rogers Memorial Trophy for another year.
Halfback Nicho Hynes contributed significantly with a try, two assists, and a flawless 8/8 goal kicking performance, extending his streak to 26.
Braydon Trindall also shone, adding three more assists to lead the NRL with 28 try assists this season.
The Sharks forwards, particularly Addin Fonua-Blake and Siosifa Talakai, dominated the Sea Eagles, while Ronaldo Mulitalo scored his third consecutive double against them.
Coach Craig Fitzgibbon expressed pride in his players and singled out Teig Wilton for his role in keeping Sea Eagles star Haumole Olakau'atu in check.
Cronulla managed to control the game's tempo early on, as Manly celebrated Old Boys' Day in a lively atmosphere.
After several set restarts in the opening minutes, the Sharks finally capitalized as Mulitalo charged forward, halted just short of the try line.
Trindall then executed a clever play, setting up Wilton for the day's opening try, while Hynes nailed his 19th consecutive conversion for a 6-0 lead.