Eels playmaker Clint Gutherson.

Shattered Parramatta coach Brad Arthur has lashed his team's horror  30-4 loss to the Knights  as embarrassing and questioned the want and desire of his players.

Arthur refused to use the club's horror injury toll as an excuse, saying last year injuries galvanised the side.

Things certainly weren't easy for the Eels as fullback Bevan French (concussion) lasted just three minutes and half Mitch Moses (likely MCL sprain) was gone after 25 minutes and probably for at least a few weeks.

The Eels looked directionless and let in some soft tries as the Knights snapped their own four-game losing run.

"We're not proud of that performance; we're not proud of ourselves," Arthur said post game.

"We've let a lot of people down tonight. We've let our club down, our fans ... ourselves. We've embarrassed themselves.

"It's not good enough. Nowhere near good enough. We had a couple of injuries but that's no excuse. Last year those injuries galvanised us and we played our better football when we were down and out.

"We need more want and desire. We didn't have it tonight. We trained all week but we got here tonight and I don't know where our mentality was at but it wasn't [there]."

Arthur was hopeful French would be available next week if he passes his concussion protocols but utility Will Smith (hamstring) is likely to miss some football, along with Moses.

"Bev, if he passes all his head tests he'll be OK. Mitch, they think it was an MCL. Will, hamstring. I don't know how bad," Arthur said.

He was hopeful Jarryd Hayne (hip), Tim Mannah (eye socket) and Corey Norman (foot) will be available for next week's match against the Cowboys. Lock Nathan Brown (ankle) got through his own injury comeback against the Knights.

Late in the game, some Eels fans were seen remonstrating that it was time for Arthur to be sacked.

Prompted about this reaction, skipper Clint Gutherson said the coaching staff were not at fault.

"It's ridiculous [to say the coach should go], Brad and the staff put so much effort into getting us, making it so easy for us to go out there on kick off and putting in our best performance, it's embarrassing that we're letting them down," Gutherson said.

"I love this team, I love Brad and we go out there every week, I put my heart out there.

"It's hard but Brad nailed it, that's embarrassing. That's one of the hardest losses I've been involved in. We have to go back and have a hard look at ourselves. We're letting the coaches down, letting ourselves down, the fans. It's embarrassing, it's not good enough."