The Hangover star took to Twitter.com to distance himself from promotional materials which seemingly advertise a party at Tyson's now derelict former home in Las Vegas.

Tyson is adamant he has no affiliation with the event, which has been billed as a celebration of the boxing match, deemed the "fight of the century".

He writes, "People call the Vegas house I use to live in Tyson Mansion & it's misleading. I moved yrs (sic) ago & never plan on stepping foot in there again. I am NOT hosting a party fight night at 'Mike Tyson Mansion'. If you got a flyer & was misled into thinking I would be there it's not true."