Powerhouse Cronulla prop Kade Snowden backed Manly duo Jason King and Brent Kite's State of Origin prospects after Saturday night's heartbreaking NRL loss to the Sea Eagles.

A downcast Snowden, bruised and battered from the physical contests in Manly's 19-13 victory at Toyota Stadium, agreed with Manly coach Des Hasler that the pair deserved to be mentioned in Origin circles.

Snowden was close to man of the match against Manly, running for 108 metres, laying on two tries and making 39 tackles, while counterpart King was Manly's best with 129 metres and 25 tackles.

Hasler told media after the game that co-captain King was playing well enough to add to his Origin debut from last season.

"There was an article early in the week about NSW not having enough props standing up. Well, I think that was fairly well refuted tonight," Hasler said.

"And I thought Jason was one of the standout front rowers out there so I think he answered that question well and truly."

Snowden and fellow Sharks prop Luke Douglas are tipped to feature in Ricky Stuart's squad for the first Origin - and they relished a brutal encounter with Manly's rough and tumble pack.

"It was a good battle between the packs ... Our whole team was pretty much all over them all game, but that try at the end just killed us," Snowden told AAP.

"Kingy and Kite have done it before, so yeah they're (a chance), for sure they deserve to be mentioned.

"Kingy is just tough. He just goes forward, there's only one speed with him and that's to go as hard as he can.

"He's a hard runner and he can put a good shot on too."

Snowden lamented the tough loss, and remained unconvinced over several calls which the Sharks felt hard done by, including a flat pass which led to George Rose's try in the 67th minute.

"I'm still shattered ... we should've won," he added.

"We got a few bad calls that put them on our tryline and they scored tries off it.

"They had two forward passes that never got called up. If that happens, it's a different story.

"It's just shattering. It's a massive, massive game that we should've won but we didn't. A few of the boys are really shattered.

"You can see what we can do out there, we've just got to do it for 80 minutes and just need a bit of luck."

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