"I'm happy about the way my career is going and very excited to be fighting for Top Rank for the first time. I just work and train and continue to wait for my big opportunity.
"I know my time is coming. I just have to be patient.''
PROMOTER BOB ARUM
"This is just a tremendous fight card and Rios versus Antillon is just the kind of non-stop action fight that boxing needs and deserves.
"I am very proud of our card on Saturday. There are a lot of stars on it, top to bottom. As exciting as Rios and Antillon will be, the Cintron-Molina fight will be absolutely great, too. There are some outstanding fighters on the undercard worth watching, talented guys like Mercito Gesta and Mike Lee.
"Fans at the Home Depot Center or those watching on SHOWTIME are in for a real treat.''
After the jump: Full undercard rundown.
In addition to the Rios vs Antillon main event and the Showtime-televised co-feature pitting Kermit Cintron and Carlos Molina, here's what's on tap at the Home Depot Center in Carson, Calif., on Saturday night:
Lightweights, 8 Rounds
Mercito Gesta (21-0-1, 11 KO) vs Jorge Pimentel (23-11, 17 KO)
Middleweights, 8 Rounds
Matt Korobov (15-0, 9 KO) vs Lester Gonzalez (12-3-2, 6 KO)
Welterweights, 6 Rounds
Rodrigo Garcia (10-0, 6 KO) vs Rahman Yusubov (11-3, 9 KO)
Lightweights, 6 Rounds
Jose Roman (10-0, 8 KO) vs Randy Arrellin (8-5, 4 KO)
Super Featherweights, 6 Rounds
Paul Fleming (9-0, 6 KO) vs TBA
Light Heavyweights, 4 Rounds
Mike Lee (5-0, 3 KO) vs Michael Birthmark (2-5, 1 KO)
Super Bantamweights, 4 Rounds
Gabino Saenz (3-0, 3 KO) vs Quincy Wesby (1-1, 0 KO)
Welterweights, 4 Rounds
Alonso Loeza (Pro Debut) vs TBA