North Melbourne midfielder Ben Cunnington has had emergency surgery after the discovery of a testicular tumour.
Scans on Monday discovered a small tumour, with the 30-year-old having the tumour fully removed on Tuesday afternoon.
"This has all happened very quickly, but our focus is on Ben and his family right now as they deal with this news and allow him to recover fully," North Melbourne footy boss Brady Rawlings said in a club statement.
"From the diagnosis earlier in the week up until this point, we've moved quickly to ensure Ben is in the right hands medically and that he and his family have the right support around them.
"We ask that everyone respects Ben and his family's privacy as this is a private health matter."
It is unknown whether Cunnington will return this season.
Cunnington has played 15 games so far this season, averaging 27 disposals and 7.5 clearances.