Los Angeles, California - Radio Rahim catches the press conference for the upcoming 144-pound showdown between former welterweight champ "Showtime" Shawn Porter (25-1-1, 16 KOs) and former three division champion Adrien "The Problem" Broner (30-1, 22 KOs), which headlines the Premier Boxing Champions on NBC primetime event Saturday, June 20 live from the MGM Grand Garden Arena.<

Also on the card, the undefeated Errol Spence Jr. (16-0, 13 KOs) puts his record on the line against hard-hitting veteran Roberto "La Amenaza" Garcia (37-3, 23 KOs) in the biggest challenge of his young career. The PBC on NBC action begins at 8:30 p.m. ET/5:30 p.m. PT

Tickets for the live event, which is promoted by Mayweather Promotions in association with TGB Promotions, are priced at $400, $300, $100 and $50, not including applicable service charges and taxes go on sale Monday, May 18. To charge by phone with a major credit card, call Ticketmaster at (800) 745-3000. Tickets are also available at www.mgmgrand.com

or www.ticketmaster.com

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One of boxing's biggest stars, Broner, the 25-year old phenom who has collected world titles at 130, 135 and 147 pounds, is looking to add another win to his impressive resume. The Cincinnati-born star scored a dominant victory over John Molina Jr. on March 7 at MGM Grand and will look to return to the same big stage and take down his fellow Ohio-native Porter. Broner has prevailed over the likes of Paulie Malignaggi, Daniel Ponce de Leon and Antonio Demarco on the way to becoming a three-division champion.

An athletic marvel, the 27-year-old Porter is eager to keep his momentum going after scoring a fifth-round knockout over Erick Bone on the inaugural March 13 PBC on Spike fight. The Akron-native dominated Devon Alexander in December 2013 to win his previously held world title. He followed that up by overpowering former two-division champion Paulie Malignaggi with a fourth round stoppage in April 2014.