Benji Marshall brought to tears by emotional milestone haka

Benji Marshall has given his strongest indication yet he will play on in 2020, declaring he feels good enough to go around for an 18th NRL season.

The Wests Tigers veteran on Sunday crossed the 300-game milestone after a long and storied career which has included its share of twists, turns, major injuries and an ill-fated stint in rugby union.

Marshall's side couldn't get the job done on an emotional day at Bankwest Stadium, falling 30-18 to Parramatta despite both sides scoring four tries each.

He was presented with the match ball by NRL CEO Todd Greenberg and post-match his friends and family brought him to tears when they performed a haka in his honour.

Despite being 34, he is showing few signs of slowing down and earlier this season broke back into the New Zealand Test side for the first time in seven years.

Marshall refused to commit to playing on in 2020, arguing his more pressing concern was getting the Tigers to the finals.

But he said he believed his body was up to another season.

"I feel great," Marshall said.

"We have a great physio staff, medical staff, I'm diligent with recovery. I feel like I could do it.

"I'm not alone in this decision. I've got to talk to (coach Michael Maguire), talk to my wife, talk about what's going to be best for my family. There's a lot of things that are going to go into it.

"I think I can do it. It's another discussion that I'm sure that's going to happen in the next month or so."

Maguire and the Tigers have some difficult decisions to make over the next few months with Marshall's fellow veteran Robbie Farah also weighing up retirement.

Maguire said he believed Marshall still had another season in him and was trying to urge him to play on.

"As a coach, you get to know your players and this week I got to see what's right around Benji Marshall and a real understanding of what he's gone through," Maguire said.

"We've only been working together six-seven months.

"To see where he's come from as a young kid, win a finals, go through so much throughout his career.

"But the one thing that really stood out was his family. I was able to really see that this week.

"For him to keep playing, I believe that he can."