On Monday, Enright remained optimistic of his chances of joining his teammates on the field again this year if they kept winning.
But leading sports medico Dr Peter Larkins said he was unlikely to return even if the Cats made the Grand Final, given the severity of the injury to his right knee.
"There's no question if we were talking middle of the season, we'd be saying he's going miss probably four weeks, maybe three if he's really quick," Larkins told AFL.com.au.
"They made a quick diagnosis that it was a medial ligament tear of his right knee and he was too sore to complete the game because of how loose it was.
"They will get a scan to see if there's any damage behind the ligament inside the knee but they were pretty confident it was just the medial.
"The expectation just on that alone is that Enright is very much an outside chance only to play again in the finals."
Later on Monday, Cats football manager Neil Balme confirmed to AFL.com.au scans had shown what was originally suspected.
"As we expected it's a medial ligament strain - it's not terrible but he'll definitely miss this week," Balme said.
"There's no certainty about further [time] at this stage. There's still some reasonable hope for him."
The Cats are believed to be looking into the right shoulder injury sustained by Harry Taylor on Saturday to ensure there is no hairline damage to his collarbone.
But Balme said Taylor was almost certain to play.
"He's good. We expect him to be fine."
Enright said he would do all he could to improve his position should the Cats keep winning.
"It's not ideal, obviously you don't want to get injured in finals but I'm just looking forward to recovery now," he said, as he left the club in a knee brace on Monday.
"I'm doing anything we can do to give it the best chance.
"I just have to wait and see and do the best I can and see where we go.
"We just need the boys to keep winning. It's out of my control. Hopefully we have a win on the weekend and see what happens."
Judd missed three games with a very similar injury.
He returned on Sunday against Richmond with serious strapping on his knee, and after a slow first half, was the catalyst for the Blues' win.
Larkins said everything would have to go right for Enright to be right to play in the Grand Final, if the Cats made it, but he would be rated an outside chance.
"I don't expect him to play Friday and it would be most unusual for him to even be in the mix for the prelim final if they got through," Larkins said.
"He'd be an absolute remote outside chance to play in the Grand Final."
The Cats are believed to be looking into the right shoulder injury sustained by Harry Taylor on Saturday to ensure there is no hairline damage to his collarbone.
Andrew Mackie (ankle), Steven Motlop (neck) and Josh Caddy – who was wearing a moon boot to help his left ankle at recovery on Sunday – are also sore.
"There were a few other sore spots, but nothing that shouldn't keep them out, I shouldn't think," Balme said.
Meanwhile, Larkins expects Tom Hawkins to play this week after his troublesome back kept him from Saturday's loss to Fremantle.
"They know what they're going to get with him. They can control pain to a certain extent but they can't control the stiffness or his lack of mobility," he said.
"It's a question of the role that he plays and I think they missed him.
"He was too sore to play so I think they made the right decision but the reason I think he'll play is that he's benefited from the time off."
Twitter: @AFL_JenPhelan
