Muhammad Ali's Boxing Relics Auction Off in Beverly Hills Items from the life of boxer Muhammad Ali are on sale during an auction in Beverly Hills, May 31 to June 1. The items are from the Harlan Werner Collection, from the agent and friend who worked with the Ali family for almost 20 years. Ali's training robe may be worth $25,000-$35,000. It was worn while training for his 61st and final fight on December 11, 1981, against Trevor Berbick. Courtesy Julien Auctions