Geelong Cats former champion footballer Gary Ablett senior is being investigated by police over historic allegations of sexual assault.

Victoria Police spokesman Constable Cameron Scott confirmed detectives from Central Gippsland are investigating an alleged sexual offence involving the football legend dating back to the late 1970s.



"As the investigation is ongoing it would be inappropriate to make any further comments," he said.

Victoria Police detectives reportedly interviewed his alleged victim, now aged in their 50s, on at least two separate occasions this year.

Fairfax Media is not suggesting Ablett senior is guilty, but only that police are investigating the allegations that have been made.