SCANS have revealed that North Melbourne midfielder Daniel Wells has developed osteitis pubis, ruling him out of playing again this season.

Wells pulled up sore from his VFL comeback on August 8 and met with caretaker coach Darren Crocker and strength and conditioning coach Paul Turk last Tuesday.

He had collected 17 possessions in just over a half of the Roosters' win over Casey Scorpions but felt his speed and mobility were far from where they needed to be.

Scans last week confirmed the 24-year-old's groin injury – influenced by weakness in his stomach muscles – had deteriorated.

Sidelined since round 11, Wells had also overcome a leg laceration that had prevented him from running for a fortnight last month.

"There are only two games to go but thinking about it, I tried really hard to get back and play but it wasn't to be," Wells told kangaroos.com.au. "That's it for the rest of the year.

"It's very frustrating to do all the work and not get rewarded for it but I left no stone unturned. That way, I've got less pressure on myself. I know I've tried everything I could and didn't come up trumps."

Wells completed the main session ahead of his North Ballarat return to be given the all-clear, but admitted he had been anxious about the contribution he could make in a match.

"You get to the last couple of training sessions before you're actually going to play and even then the speed wasn't up," he said. "I went into the game a little bit worried I wasn't going to perform and got through it. Luckily, we played well.

"A couple of times in the game when blokes were running the other way or I was trying to chase them, if they had have turned left or right they probably would have got me."

However, Wells said his injury would not require surgery and that the only remedy was rest.

"I've got to be careful how I go about it because I want to come back when the boys come back in the pre-season," Wells said. "I don't want to come back any later."

Chief of football Donald McDonald added that Wells would need to focus on his core strength in the coming months.

"To his credit, he displayed an enormous amount of courage under discomfort to actually get out and train and play," he said.

 "We'll provide a program that will help him in the next eight to 10 weeks. He's got to let that pubic bone heal but at the same time, he needs to do an enormous amount of work."

Wells played just seven games this season for a career total of 130.