United States Vice President Joe Biden is tipped to make a flying visit to Melbourne this weekend.
A formal announcement is expected in the next 48 hours, but there are reports Mr Biden will attend the official opening of Victoria’s Comprehensive Cancer Centre.
Mr Biden is closely involved with several global cancer research projects, after his 46-year-old son Beau died of brain cancer last year.
It is also understood Mr Biden will attend the AFL game between Carlton and West Coast at the MCG on Sunday.
The Victorian government said nothing has been confirmed, and the AFL and Cancer Centre have also refused to confirm the visit.
Beau Biden, who had battled brain cancer for several years, died in May last year after he sought aggressive cancer treatment at the Walter Reed Army Medical Centre outside Washington.
He suffered a mild stroke in 2010 and underwent surgery at a Texas cancer centre in 2013 to remove what was described as a small lesion.
After eight years as Delaware state attorney general, Beau Biden joined the investor law firm Grant & Eisenhofer in 2015.
He had previously served a year-long tour in Iraq as a captain in the Delaware Army National Guard.
In 2014 he announced he planned to run for governor of Delaware in this year’s election.