Something exciting will be brewing at the TD Garden on Saturday night: UFC 292.

The world’s premier mixed martial arts fighters will be fending off against each other, while at the same time, producing massive gains for Boston’s local economy.

Returning to the Garden for the first time since pre-pandemic, UFC 292 sold out within days of tickets going on sale in mid June, going at a clip faster than any events in the past, UFC and arena officials told the Herald.

In fact, total revenue in ticket sales is expected to be $6.75 million, nearly triple the $2.45 gate from UFC 220 in January 2018, the Garden’s last pay-per-view event, according to figures leading up to the event.

“This is absolutely one of the bigger events we’ll do this year,” he said. “It ranks up there with the events we put on in Las Vegas, New York, and, frankly, anywhere around the world.”

UFC is a major tourism draw, evidenced by how 70% of the ticket buyers for Saturday night’s tilt are from outside of Massachusetts, figures show. And many of those out-of-staters are staying two nights at a city hotel, Epstein said.

TD Garden President Amy Latimer said UFC 292 is expected to become the highest-grossing sporting event in the arena’s history, outside of the NBA Finals and Stanley Cup Championship.

Tickets that remained available on the secondary market as of Friday night were starting at $342, not including fees, for standing room only, with many well over $1,000 on Stubhub.

“The success of UFC 292 is a major win for TD Garden and for the city of Boston,” Latimer said in a statement, “demonstrating that our city is a premier destination for major sporting events and helps boost our local economy.”