The Canberra Raiders megaprop has added another string to his match-winning bow, now adding game-changing ankle taps to his regular match-winning tries.

So good has Papalii become, Raiders coach Ricky Stuart said he would go down as one of the Green Machine's greats.

For those living under a rock, Papalii produced one of the plays of the century in the Raiders' 36-16 victory over the Gold Coast Titans.

The 112-kilogram prop chased down Titans halfback Jamal Fogarty, who looked certain to score until Papalii's diving ankle tap not only stopped him but forced the turnover as well.

Fellow Canberra front-rower Ryan Sutton said it revealed what drove the softly spoken State of Origin star.

"He's not shut up about it to be honest. He's only been saying he's the fastest middle in Queensland at the minute," Sutton said with a laugh.

"That's just a true credit to the player 'Paps' is. He has a no-die attitude.

"That was at the point in the game where he could've let him go away. Credit to Paps and we just backed him up after that."

MORE RAIDERS NEWS

The Raiders already have the fastest player in the NRL, with halfback George Williams clocked doing 35.1 kilometres per hour - the fastest of any player this season.

Now they can add Papalii to the list.

He could become even faster, with his wallet potentially lightened by $550 if he takes the early guilty plea for a grade-one careless high-tackle on Titans prop Jaimin Jolliffe.

That would rise to $750 if he unsuccessfully fights the charge.

Jolliffe left the field for a head injury assessment, but was able to return.

Titans lock Moeaki Fotuaika faces up to a two-game ban for a crusher tackle on Raiders co-captain Jarrod Croker.

Papalii showed his leadership in suggesting to Stuart he should start on the bench against the Titans.

The 28-year-old came on to not only produce one of the plays of the season, but he also ran for 148 metres.

Raiders five-eighth Jack Wighton felt not only did Papalii save a try, but he helped stop the Titans' momentum with the Raiders leading 22-4 at the time.

"He's done good, that was unreal. Seeing a big fella chase like that, make that tackle is huge," Wighton said.

"I think it was a game changer. A little bit of a momentum swing there, the little half went through and big Paps stuck with him and forced an error. It was a huge play."

The Raiders face the Canterbury Bulldogs at Canberra Stadium on Sunday.

It's a similar sort of opponent to what the Green Machine have faced the past month - struggling teams like the Titans, Brisbane Broncos and North Queensland Cowboys.

"They're going to be very dangerous also. They've got some good middles and some boys that like to play football," Wighton said.

"They don't have much to lose. They'll be turning up to play and they'll be ready to throw the ball around so it's going to be a tough one for us."

NRL ROUND 16

Sunday: Canberra Raiders v Canterbury Bulldogs at Canberra Stadium, 6.30pm.