The Group 10 Premier League acts as one of the curtain-raising fixtures before the Penrith-Manly NRL contest kicks off at 3pm and for CYMS, it's going to be a hell of a challenge.

Daniel Mortimer's men fell to Panthers in the grand final of the pre-season knockout, and after spending the first round on the sidelines with a bye, Munro knows his teammates can't afford to leave the blocks slowly.

"We know we need to start fast and match them early on... especially in the forward pack," Munro said.

While Panthers have a potent back line, it's the big men that have peaked Munro's attention ahead of CYMS' season opener.

"There's not many weaknesses in that forward pack. That's a group they've built over the last few seasons and it's really strong.

"The focus this week has been on our defence and making sure that's all working."

He's spent the last two seasons at the back of the field and nothing will change on Saturday as Munro will slot into the fullback role for Mortimer.

As a fullback, there's plenty of things you need to make sure you're doing correctly, but Munro prioritised his duties.

"My biggest aim is my support play," he said.

"I also want to try to not overplay my hand in attack. I want to try to get the little things done right."

Daniel Mortimer will be playing in the 10.55am game with his CYMS teammates, but six years ago, he was part of the Gold Coast Titans side that copped a belting at the hands of Penrith at this very venue.

It's players like Mortimer who will be a key for the green and golds this season as Munro spoke about the way the side is trying to perfect their chemistry.

"If everyone plays their role and works as a team, we should gel alright.

"Panthers have won the last two comps so they're the benchmark."

Mortimer has named new men Jack Nobes and Jach Buchanan in hooker and prop respectively, while Mitch Britt will play alongside Mortimer at five-eighth while Liam Kennedy will debut off the bench.

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