That's all from the Hunter. Big win for the Tricolours.
Walker adds one more goal to finish with 5/7 today.
Easy does it - a kick through the backline and the Knights are found wanting with Ponga up way too far in the line. J Moz goes through and completes his hatty just moments after his brother is carried off injured.
Morris is carried off and the Roosters resume on halfway with a play-the-ball after Newcastle were forced out over the touchline. One more try in this one?
The last ten minutes not great for the Roosters. Brett Morris currently down with brother Josh looking over him. Just a minute or two back, Lindsay Collins left the field injured as well.
Newcastle have a golden chance off a scrum inside the Sydney 20m but spill it on the first play. Not their night.
Silly from Ikuvalu - he's taken Blake Green out after a kick and has been put on report. Green hobbles to the sideline under a free interchange. Doesn't look good.
Pretty flat mood for the most part at the home of the Knights. A couple of men in red and blue looking to spark something for the hosts but the Roosters have them well covered for the most part.
No issues for Walker from an easy angle. Floodgates about to open?
J Moz picks up a second try! Another long-range effort after a clever offload to Radley - he finds Walker who nearly gets stopped but quick thinking sees it go out to J Moz and that's all she wrote for that movement, and the result beyond any sort of long-range humoured doubt.
Walker bangs over the added two for his own try.
Sammy Walker finishes on the end of an electric break which sees Brett Morris fly down the sideline, finding Ikuvalu inside who feeds it on to Walker. Easy in the end!
Newcastle looking likely and the Roosters scramble defence combines to put Bradman Best out over the touchline.
The Roosters butcher a Knights last-tckle kick and the home team has a good opportunity.
Game back ON at MJS. Lots of work ahead if the home team want a go at winning this.
We reach halftime with the Roosters on top. They dominated the opening half hour before Newcastle launched a mini-fightback in that last ten.
As the half winds to a close, the Knights definitely seem to have some momentum after that try, but they can't capitalise off this particular set and the Roosters have the ball coming from their own end.
Ponga misses
The rookie gets the first try off a bullet-like cut-out pass from Ponga! Musgrove dives over in the corner.
Here we go. Newcastle earn a scrum off a Siosiua Taukeiaho error in the play the ball. Full set inside the Roosters' 40m!
The clock seems to have caught up and passed the Roosters after a frenetic opening quarter of the contest. A stunned silence remains around McDonald Jones Stadium though.
Opposite side this time, and he nails it.
Wowee. Getting ugly at McDonald Jones. Ikuvalu finds himself inside Brett Morris receiving and offload. Some ordinary defending from the Knights.
This time Walker pushes it right. FOURTEEN NIL
Oh boy, the tricolours are on fire. Walker puts a deft kick and it bounces awkwardly for Tuala - Crichton is there to pounce.
Walker pushes that one left.
Tupou looks likely after fast hands to the left but he gets it to Josh Morris off a tap-back and the former Dragon, Bulldog and Shark scores another.
Roosters with another shot at the Newcastle line here. Big test for the home team's defence.
Walker nails the additional two.
Tupou goes over off an easy left side overlap.
Roosters penalty now and they have a full set in the Newy 20m.
The Roosters survive the early onslaught.
Penalty Newcastle - they get one near the end of their first set and will get a full set inside Roosters' territory.
Quick look at team changes - hosts Newcastle are all good apart from a bench switch, Josh King missing from the team named Tuesday, in comes Pasami Saulo. Roosters lost Tedesco mid week. Manu fullback, B Morris centre, Ikuvalu wing.
We're underway at McDonald Jones Stadium, Roosters have first use.
Referees & scorers:
Referee: Matt Cecchin
Touch Judges: David Munro, Nick Beashel
Video Referee: Alan Shortall
NEWCASTLE KNIGHTS (4)
Tries: Brayden Musgrove
Field Goals:
Two Point Field Goals:
Conversions: Kalyn Ponga (0/1)
Penalty Goals:
SYDNEY ROOSTERS (38)
Tries: Daniel Tupou, Sam Walker, Josh Morris (3), Angus Crichton, Matt Ikuvalu
Field Goals:
Two Point Field Goals:
Conversions: Sam Walker (5/7)
Penalty Goals: