The final stop on a lengthy press tour promoting the Sept. 14 junior middleweight title fight between Floyd Mayweather Jr. and Saul “Canelo” Alvarez at MGM Grand in Las Vegas is tonight at 7:30 at Nokia Plaza at L.A. Live. It is open to the public.

This was supposed to be the second half of day-night news conferences. But the one slated for Tuesday morning in Phoenix was canceled out of respect for the 19 firefighters who lost their lives fighting a wildfire in central Arizona.

Mayweather, 36, is from Las Vegas via Grand Rapids, Mich. He is 44-0 with 26 knockouts. Alvarez, 22, is from Mexico. He is 42-0-1 with 30 knockouts. Their fight will be televised on Showtime pay-per-view.