Newcastle's post-Origin nightmare has reached a new low with Manly inflicting a fifth straight defeat on Brookvale soil that now doubles as a red-and-blue burial ground.

The Knights have won just three games on Sydney's northern beaches in their 30-year history and Saturday's dismal 30-6 loss to the Sea Eagles has their 2019 campaign circling the drain.

Manly's six tries-to-one victory in turn was their sixth in seven games and shot them to equal fourth on the ladder with the Roosters, all but assuring them of a return to finals football after narrowly avoiding last year's wooden spoon.

In the same week that star recruit Jesse Ramien was told he was free to leave, Newcastle's own finals hopes surely went the same way, their losing streak ingrained despite Manly appearing a little worse for wear from a 90-minute thriller against Melbourne last round.

No play summed up the Knights' malaise more than a 66th minute foray that proved their last roll of the dice, Connor Watson slicing through Manly's middle while down 20-6.

But his pass to Kalyn Ponga in support came too early. Mitchell Pearce's kick on the following play too deep.

And a rare attacking opportunity was suddenly a Sea Eagles' seven-tackle set.

Making no mistake with the simplest of left-edge shifts, Manly had Newcastle treading water, Jorge Taufua helping himself to a match-sealing four-pointer.

All afternoon the Knights found themselves all at sea on the edges.

None more so than when Kurt Mann rushed in late with the result already assured, the makeshift winger attempting to shut down a Daly Cherry-Evans cut-out ball for Reuben Garrick.

Mann tripped, slipped and had injury added to insult as Garrick scored untouched, the Newcastle utility forced from the field a short time later.

Match: Sea Eagles v Knights

Round 20 -

Full Time
Sea Eagles

Home Team

Sea Eagles

Scored 30 points
Knights

Away Team

Knights

Scored 6 points

Venue: Lottoland, Sydney

Match broadcasters:

  • Foxtel
  • LIVE PASS
  • KAYO

The Sea Eagles found fortune aplenty targeting Mann and the Knights' edges in general, Cherry-Evans finishing with three try assists for the day.

A short ball for Curtis Sironen started it. A far more impressive combination with Garrick in the 25th minute – the skipper's pin-point chip kick finding Mann out of position and Garrick in full flight – continued it.

Ponga briefly halted the one-way traffic with brilliance of his own.

At the half-hour mark he dragged Newcastle back into the contest, taking Cherry-Evans across the try line after first beating him from 10 metres out and stepping his way on to the scorecard.

The resurgence proved short-lived, an 8-6 halftime advantage to Manly belying mistakes from both sides.

Errors continued after the break, until the Sea Eagles broke clear, all too easily in the end.

Veteran back-rower Joel Thompson left Knights No.6 Mason Lino for dead from 20 metres out, cutting back inside Mitchell Barnett and Ponga to give Manly the ascendancy.

When Marty Taupau charged through equally flimsy defence the Knights were clinging on for dear life, their season in similarly dire shape.

A reasonable run home has them a chance to turn it around with the Eels, Cowboys, Tigers, Titans and Penrith rounding out their last month of the regular season.

But on current form the Knights have been buried once more at Brookvale.