The undercard – comprised strictly of boxers in boxing bouts – for this month’s Floyd Mayweather vs. Conor McGregor blockbuster event is set.

Officials today announced the three bouts, including a pair of title bouts with IBF junior-lightweight champion Gervonta Davis (18-0) vs. Francisco Fonseca (19-0-1) in the co-feature slot.

In the main event, UFC lightweight champion McGregor (21-3 MMA, 9-1 UFC) – the card’s lone MMA representative – and undefeated boxing great Mayweather (49-0 boxing) face off on Aug. 26 at T-Mobile Arena in Las Vegas. The 12-round super-welterweight boxing match tops a pay-per-view event that’s expected to be the most lucrative prize fight in combat-sports history.

The PPV broadcast – one that comes with a hefty $100 price tag – also includes these bouts:

Champ Gervonta Davis (18-0) vs. Francisco Fonseca (19-0-1) – for IBF junior lightweight world Championship

Champ Nathan Cleverly (30-3) vs. Badou Jack (21-1-2) – for WBA light heavyweight world Championship

Andrew Tabiti(14-0) vs. Steve Cunningham (29-8-1) – for vacant USBA cruiserweight title

“What a night this will be for fight fans,” Leonard Ellerbe, CEO of Mayweather Promotions, said in a statement. “Not only will they witness a first-of-its-kind main event, but they will also see two incredible world title fights, as Mayweather Promotions’ very own current and former world champions go head-to-head in separate bouts.

“Gervonta Davis is nothing short of pure boxing talent with dynamite power. Former super middleweight world champion Badou Jack is making his light heavyweight debut, and looking to take the title away from a tough and experienced Nathan Cleverly. But first, Andrew ‘The Beast’ Tabiti will open the pay-per-view telecast with what I expect to be a magnificent performance.”

UPDATE: Officials also have announced two televised preliminary fights that will air on FOX and FOX Deportes beginning at 7 p.m. ET. They are:

Both bouts are scheduled for 10 rounds. The featured prelim pits a former champion and top welterweight contender in Porter against a former title challenger in Dulorme. Heraldez-Borrego is a battle of unbeaten super lightweight prospects.

“The fans are in for a show,” Ellerbe said in a statement. “Not only do we have an amazing lineup of fights on our PPV telecast, we have a stacked undercard and plan to give the fans more. More fights, more access. We plan to get the fans’ excitement brewing with matchups like Dulorme vs. Porter and Heraldez vs. Borrego all on network TV. These are some even matchups, and we are happy to have FOX and FOX Deportes on board to showcase this talent ahead of the grand finale that is Mayweather vs. McGregor.”

For more on “The Money Fight: Floyd Mayweather vs. Conor McGregor,” check out the MMA Rumors section of the site.