SCANS have confirmed Daniel Wells suffered a low-grade calf strain in the VFL on Saturday, but North Melbourne remains hopeful the star midfielder can still play a part in its 2015 finals campaign.

Wells has not played for North since round two when he was substituted out of the win over the Brisbane Lions with an Achilles tendon injury. 

The 30-year-old was playing his third game back in the VFL on Saturday, when he limped off the ground during the third quarter of North Ballarat's win over Coburg.

North football director Geoff Walsh said on Monday the club would not know how long Wells would be sidelined until later this week.

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"Daniel felt some tightness in his left calf during the match and came off for medical assessment," Walsh said.

"We made the decision not to take any risks with him and he played no further part in the game.

"Our advice is that the injury is a low-level strain, so (it's) nothing major or of too much concern, which is a good result in the circumstances and given his recent Achilles history.

"The medical team will work with him closely over the next couple of days to see how he responds to treatment before we determine his availability. 

Walsh said North had not given up hope that Wells could return before the end of the season.

"We'll aim to get Daniel back up and running as soon as possible," he said.

"We're still two weeks away from the start of finals so we have some time to get him right, all going well."

Kangaroos chairman James Brayshaw acknowledged the club was running out of time to have Wells match-fit in time for the finals series.

"(We're) desperately trying to get enough footy into him so he can push to play, but if you get into September … and you're not 100 per cent fit, then you just can't," Brayshaw told Channel Nine on Sunday. 

On Thursday, North coach Brad Scott said Wells' Achilles was pulling up "better and better" in recent weeks following each training session and match.

Scott said Wells was in a better position compared to the same time last year, when he featured in two of the last three matches after a four-month absence with a foot injury, before playing in the Roos' three finals.

"He's actually done more work in terms of physical load than he'd done this time last year, and he played well in the finals last year," Scott said.