Tickets for the much-anticipated fight between Floyd Mayweather and Manny Pacquiao sold out within minutes, and then immediately appeared on websites for as much as $70,790 (£47,000).
Only about 1,000 tickets were put on sale on Thursday 23 April for the 2 May fight at the MGM Grand in Las Vegas, Nevada. The remaining 15,500 seats will go to fighters, sponsors and promoters. The ticket contract was finalised only this week.
Even before they were put on sites such as eBay and StubHub, the cheapest ticket for the bout cost $1,500, with the most expensive on offer at about $7,500.
American Mayweather, 38, and Filipino Pacquiao, 36, are among the best fighters of their generation and the bout, in the planning for five years, is set to generate $250m.
Mayweather has won all 47 of his fights, 26 by knockout, while Pacquiao has a record of 57 wins, five losses and two draws.