The fight could be a snooze, but the press conferences should be memorable. Floyd Mayweather and Conor McGregor, two of the biggest showmen in sports, will share the stage during a four-city press tour that begins Tuesday in Los Angeles with a stop in Brooklyn on Thursday.

With additional press conferences in Toronto on Wednesday and London’s Wembley Stadium on Friday, the international press tour will officially kick off promotion of the Aug. 26 boxing match between Mayweather, the retired unbeaten champion of boxing, and McGregor, the active UFC champion, in Las Vegas. Tickets for Thursday’s press conference at Barclays Center are available free to the public at Ticketmaster.com on a first-come-first-serve basis.

Brett Yormark, the CEO of Brooklyn Sports & Entertainment, has spent recent years building a strong boxing presence at Barclays Center and sees nothing but benefits to hosting the Mayweather-McGregor presser.

“I think it’s terrific for the sport of boxing,” Yormark said. “I’m a purist, but I’m also a marketing guy. My son is 12 years old and all his friends are talking about the fight and they’re UFC fans. This is bringing a much younger audience into boxing that hasn’t supported boxing over the last couple of years.”

Thursday’s schedule has doors opening at 5:30 p.m. with a pre-show set for 6 p.m. The actual press conference is scheduled to start at 7 p.m. The fight is expected to be the richest event in boxing history, bringing in more than the $600 million generated when Mayweather fought Manny Pacquiao in May 2015.

Mayweather, 40, retired at 49-0 after beating Andre Berto in September 2015 and seemed happy in retirement until being called out by McGregor, who became the first UFC fighter to simultaneously hold two titles in different weight divisions. The Irishman has since given up the featherweight belt.

Having technically never boxed professionally, McGregor, 28, is a huge underdog, and the matchup has been panned by many, especially those in boxing. But Yormark, who works to bring concerts and other attractions to the arena, appreciates what sells.

“It’s an event,” he said. “I don’t necessarily look at it as a boxing event. I look at it as a major event. We’re all in the big-event business and this is a major event that’s taking up space in newspapers and is the talk on social media. It’s everywhere and it’s only going to grow over the course of the next 45 days. It puts boxing on the front pages of the sports section instead of the back and that’s great for the sport.”

Thursday’s press conference starts a busy month for Yormark and Barclays Center, which owns the Nassau Coliseum. That building underwent an 18-month, $165 million renovation and has been renamed NYCB Live. It will host boxing and MMA on consecutive weekends.

On July 15, Robert Guerrero (33-5-1, 18 KOs) faces Omar Figueroa Jr. (26-0-1, 18 KOs) in the main event of a welterweight Premier Boxing Champions showdown to be televised live on FOX. Local favorites Marcus Browne and Seanie Monaghan meet in a battle of unbeaten light heavyweights and Artur Szpilka and Adam Kownacki tangle in a battle of Polish heavyweights.

A week later, UFC Fight Night makes its Long Island debut with former middleweight champion Chris Weidman fighting in the main event against Kelvin Gastelum. Weidman (13-3) of Baldwin, N.Y., has lost three straight fights and badly needs a victory against Gastelum (14-2) of San Jose, Calif.

“This is a big month because we’re showcasing both sports for the first time there,” Yormark said. “It makes sense for us to continue what we’ve done at Barclays Center and continue out there at NYCB Live. We’ll have two or three big boxing events out there a year and one or UFC events.”

Boxing returns to Barclays Center on July 29 when three-division champion Mikey Garcia and four-division champion Adrien Broner meet in the main event of a PBC card to be televised by Showtime.