Retiring Kangaroos great Jack Ziebell has spent the night in hospital after being brutally bashed following a club function at a South Yarra nightspot to celebrate his 15-season AFL career.

Ziebell, 32, had played his 280th and final game for North Melbourne on Saturday afternoon at the MCG, bowing out during the Roos' 29-point loss to Richmond.

The former first-round draftee then travelled with teammates to the Osborne Rooftop Bar on Commercial Road for an official club function.

Yet, after departing the venue some hours later, the ex-captain was assaulted by several assailants.

In a Sunday morning statement, North Melbourne provided an update on Ziebell stating that the ex-captain had been forced to spend the night in hospital and that Police were aware of the assault.

"Ziebell had been celebrating his final match at a club function earlier in the evening and headed to the venue with a group of teammates and some staff following the event," the statement read.

"He later exited the venue and was immediately set upon by a group of men in an unprovoked attack.

"He suffered injuries to his face and head and needed to spend the night in hospital.

"Victoria Police attended the incident."

Further reports from SEN's Tom Morris claim that the retiree may require surgery to repair injuries sustained to his face.