Jermall Charlo will defend his WBC interim middleweight title against Willie Monroe, Jr. in the main event on FOX and FOX Deportes live in primetime on Saturday, December 22 at Barclays Center in Brooklyn. In the co-feature, twin brother Jermell Charlo makes the fourth defense of his WBC super welterweight championship against Tony Harrison.

Jermall’s fight will serve as the main event of the show after he won the coin toss at today’s press conference to determine which Charlo twin will close the show. The coin toss was conducted by legendary heavyweight Gerry Cooney. With a call of heads on the WBC commemorative coin, Jermall won the right to be the headliner on fight night.

It was also announced that opening the show will be WBC mandatory heavyweight challenger and 2012 U.S. Olympian Dominic “Trouble” Breazeale against Carlos Negron in a 10-rounder.