Parramatta confirmed Cartwright had a rib injury but there is uncertainty over the severity of the injury.

Cartwright could be named to play against the Tigers on Easter Monday if he can push through the pain.

Cartwright has been in career-best form to start the season, but will now join Moses in the club’s rehabilitation group.

Moses had surgery on the broken foot he injured while being tackled late in the second half. He hobbled back to his feet and finished the game but struggled to walk after full-time.

The Eels will welcome back winger Maika Sivo and centre Bailey Simonsson against the Wests Tigers on Easter Monday.

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Sivo, who copped a three-week suspension for a high shot on Gold Coast star AJ Brimson during the pre-season trials, said he needed to overhaul his tackle technique. The Fijian winger was also banned for four games last year, after an unsuccessful appeal for a downgrade, after collecting Titans winger Jojo Fifita with a swinging arm.

“It is what it is. I just have to change my tackling technique and go from there,” Sivo said.

“I’ve been practising after every session with our defence coach. I’ve been improving and can’t wait to get back.

“I’ve been doing it for the past two weeks to try to get into the habit of that and then implement that on the field.

“I don’t want to be on the outside watching the boys play. I wish I was out there, but in saying that, I have to keep working on my technique.”

The bad news for Moses and Cartwright comes as the Panthers have also suffered a huge blow with Nathan Cleary to be ruled out of the blockbuster against the Roosters with a hamstring injury.

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