Following the final press conference, Canelo vs. GGG 2 undercard fighters including Mexican middleweight star Jaime Munguia (30-0, 25 KOs), rugged Canadian contender Brandon "Bad Boy" Cook (20-1, 13 KOs), former IBF Middleweight World Champion David Lemieux (39-4, 33 KOs), Irish warrior Gary "Spike" O'Sullivan (28-2, 20 KOs), former four-division world champion Roman "Chocolatito" Gonzalez (46-2, 38 KOs), and experienced Mexican warrior Moises "Moi" Fuentes (25-5-1, 14 KOs) staged an open workout for fans in the lobby of the MGM Resort and Casino.
Canelo vs. GGG 2 is a 12-round fight for the middleweight championship of the world presented by Golden Boy Promotions and GGG Promotions. Munguia vs. Cook is a 12-round battle for the WBO Junior Middleweight World Title presented by Golden Boy Promotions and Zanfer Promotions.
Lemieux vs. O'Sullivan is a 12-round a WBA World Title Eliminator presented by Golden Boy Promotions and Eye of The Tiger Management in association with Murphy's Boxing.
Gonzalez vs. Fuentes is a 10-round super flyweight fight presented by Golden Boy Promotions and GGG Promotions in association with Teiken Promotions and Zanfer Promotions.
The event is sponsored by Tecate, "THE OFFICIAL BEER OF BOXING," Hennessy, "Never Stop, Never Settle," O'Reilly Auto Parts, Fred Loya Insurance, Interjet, Venom, and Fathom Events. The event will take place Saturday, Sept. 15 at T-Mobile Arena in Las Vegas and will be produced and distributed live by HBO Pay-Per-View beginning at a special time of 8:00 p.m. ET/5:00 p.m. PT.