The Knights initially ruled Pearce out for four months, meaning he was set to return in the final weeks of the season.
However, Pearce believes he can follow in the footsteps of fellow players around the league, and make a return sooner than expected.
“Worse case is four months, so 16 weeks. I’ve spoken to other guys … Boyd Cordner from the Roosters is a good mate of mine, he did a similar injury that was 10 weeks. Daniel Tupou is out for 10 weeks,” Pearce told KOFM Newcastle on Monday.
“It just depends how you heal. I’m obviously going to think about the best case and that’s 10 weeks.
“I’m going in for the operation tomorrow then I can get stuck into rehab. I’ve generally been a good healer.”
Pearce, who has had a relatively clean bill of health over his long career, was disappointed after picking up the injury.
“I’m pretty angry, I’m pretty disappointed,” Pearce said.