From Forbes:
Tickets have not gone on sale to the public yet, but they are expected to start at $1,000 with ringside seats fetching a face value of $5,000. This will result in a total gate of around $40 million for the 16,800-seat MGM Grand Garden Arena. It would double the previous biggest gate in boxing history, which was $20 million for the Mayweather vs. Canelo Alvarez fight billed as “The One” in September 2013.