Shellharbour sounded a warning with a 16-12 win over defending premiers Gerringong last week but coach Dave Walsh says they need to lift every week as rivals line up to spoil their Group Seven homecoming.
The Sharks rejoined Group Seven this season after six years in the Illawarra Coal League and Walsh said it was inevitable his side would become a sought-after scalp.
"You could probably say some of the clubs think we've got a bit of tall poppy given we were in another competition and have come back," Walsh said.
Walsh said improved discipline and ball control were the keys to the Sharks' win over the Lions after a first-up loss to fierce rivals Warilla.
He said that must continue against Albion Park at Centenary Field on Sunday.
Elsewhere, Gerringong will look to bounce back from their loss to the Sharks at home against Milton-Ulladulla at Michael Cronin Oval on Saturday.
The Blacks will travel to Berry Showground to take on the Magpies and Nowra-Bomaderry will host Kiama at Nowra Showground on Sunday.