North Melbourne forward Ben Brown has suffered a setback in his pre-season, undergoing a minor knee operation on Thursday.

The 24-year-old landed awkwardly at training last week, resulting in swelling in his knee. He subsequently underwent a "wash-out procedure".

Brown will miss around a fortnight of training, the club confirmed on Friday.

“In terms of seriousness, specialists feel this is at the very low end of the spectrum,” senior performance consultant Steve Saunders told the club's website.

“The procedure should maximise Ben’s remaining preseason and outcomes for his knee long term.

“We could have managed the issue as it was without surgical intervention, but given the time to round one, we felt it was best to involve a specialist and take this course of action."

Brown's injury follows news that Majak Daw will be sideline for a month after scans revealed a tear in his meniscus late last week.