Three-division world champion Mikey Garcia (36-0, 30 KOs) of Moreno Valley, California by way of Oxnard and four-division world champion Adrien "The Problem'' Broner (33-2, 24 KOs) of Cincinnati will square off at the Barclays Center in Brooklyn New, York on the Showtime Championship Boxing, main event Saturday, July 29 live on Showtime.