A mouth-watering matchup that’s been rumored for weeks is now official.

Mikey Garcia will climb to 140 pounds for a tantalizing 12-round fight against Adrien Broner on July 29, it was announced Thursday. Showtime will televise the bout, which doesn’t have a venue yet; Barclays Center in Brooklyn, N.Y., is the likely destination.

RingTV.com reported last week that the Broner and Garcia camps were in talks.

“Showtime Sports continues to deliver the most anticipated matchups, the most important events and the most thrilling fights in boxing,” said Stephen Espinoza, Executive Vice President and General Manager of Showtime Sports.  “We consistently feature top-rated champions and challengers.

“The best are fighting the best and the results have been spectacular.  Adrien Broner vs. Mikey Garcia is a fight that fight fans have dreamed of — an undefeated, young star facing one of the best 140-pound fighters in the sport, both men in the prime of their respective careers. July 29 promises to be a memorable night in a year already full of memorable boxing events.”

Broner, 27, was forced to vacate his 140-pound title last year after missing weight for a scheduled title defense against Ashley Theophane (Broner won via stoppage.) Broner (33-2, 24 knockouts) spent 30 days in prison after arriving late to court and then returned in February with a decision victory over Adrian Granados.

That bout was contracted at 140, but the contracted weight was moved to 147 a month out at the request of the Broner camp.

The Cincinnati native was back in jail for a three-day stint last month for charges related to an outstanding warrant related to a disorderly conduct incident at a Kenton County, Kentucky, establishment in 2014.

The four-division beltholder lost the two occasions he stepped up in class, points defeats to Marcos Maidana and Shawn Porter.

Garcia, 29, is one of the best pound-for-pound talents in the sport and figures to be a decided favorite. The brother of renowned trainer Robert Garcia grabbed titles at 126 and 130 pounds before a promotional squabble with Top Rank forced him to the sideline for two-plus years.

The Oxnard, California, native returned last summer with a stoppage of Elio Rojas before Garcia (36-0, 30 KOs) scored a devastating knockout of Dejan Zlaticanin in January to win a 135-pound title.

This matchup materialized seemingly out of nowhere — the fighters were two divisions apart — but it’s likely to deliver fireworks and already has tons of interest from fans.