Sydney Roosters forward Isaac Liu.

Isaac Liu insists the Roosters won't dwell on Jared Waerea-Hargreaves' judiciary outcome leading into next week's preliminary final against Parramatta or Melbourne. 

The Tricolours hit the training paddock on Monday afternoon with Waerea-Hargreaves set to challenge a grade-one tripping charge in his second visit to NRL headquarters in the space of a week.

A charge of that nature would normally attract a monetary fine but his poor disciplinary record this season meant he attracted a 20% loading on top of a 100-point base charge.

"It'd be a big loss obviously, we know how he plays and the footy he brings," Liu said on Monday.

"Whoever we have we can trust them to do a job. It's happened before, I'm going to embrace it and help out my team as a senior player.

"If he's not there it doesn't change my role."

Entering his 157th career game, Liu has played more than 22 matches in each of the past six seasons to fly under the radar as one of the game's most consistent forwards.

Liu said he enjoyed the challenge when his club and Kiwis teammate had been missing from the starting line-up this year.

"I do, I really do," Liu said of the leading the pack without Waerea-Hargreaves.

"Having Jared there is a huge benefit for us with what he brings for us in a footy game. But I enjoy the challenge of not having him there, it's a big jump and I enjoy that.

"I don't look at myself too much. I just try and improve every week. I've been here for a while now and have got a bit more experience. I know what it takes and what's got to happen. I can't wait for it."

The Roosters blew the Rabbitohs off the paddock in their qualifying final to advance and be within arm's reach of a second consecutive grand final appearance.

Liu believed no side could stop them if they could replicate the opening half, but their second 40 minutes drew criticism from coach Trent Robinson, who suggested they should have racked up 50 points.

"I would agree too but again the second half we were off a bit and lacked a bit of our Roosters performance," Liu said.

"The way we started was fast and strong. We caught them off guard. If we can keep playing the way we do we can go all the way."