LOS ANGELES - Featherweight world champion Jesus Cuellar and former three-division world champion Abner Mares went face-to-face Thursday at the final press conference before their world title showdown that headlines action this Saturday, December 10 at Galen Center at USC in Los Angeles and live on SHOWTIME®. Photos by Stephanie Trapp

The press conference also featured super welterweight world champion Jermall Charlo and top rated challenger Julian Williams who meet in a battle of unbeaten rising stars that opens the SHOWTIME CHAMPIONSHIP BOXING telecast at 10 p.m. ET/7 p.m. PT.

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Tickets for the live event, which is promoted by Ringstar Sports and TGB Promotions, are on sale and are priced at $35, $50, $75, $150 and $200. To purchase tickets go to www.galentix.com.

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Additional action on Saturday will be shown via SHOWTIME BOXING on Facebook Live at 8 p.m. ET/5 p.m. PT and feature unbeaten contender Sergey Lipinets battling Australia's Lenny Zappavigna in a junior welterweight world title eliminator and undefeated prospect Erickson Lubin taking on once-beaten Juan Ubaldo Cabrera.

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RICHARD SCHAEFER, Chairman & CEO of Ringstar Sports

"This is one of the best cards that I can remember -- two evenly matched fights at the top of the card and really a great night from top to bottom.

"When you look at these two fights, you really have two events that could be main events anywhere. These four guys are really made for each other. It's going to be a very entertaining night.

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"Galen Center is a beautiful facility. It's the newest indoor venue in Los Angeles and it's perfect for boxing. It's great to be here on the campus of USC.

"When you think about punchers, you think about Argentina. Jesus Cuellar is a guy who more often than not ends a fight with a knockout. He's always ready to take on any challenge and ready to make a name for himself. He's a force to be reckoned with in the featherweight division.

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"A few times a year you just know that a fight is going to be a 'Fight of the Year.' This main event is one of those fights. You can bet the house that Cuellar vs. Mares is going to be a good fight. You want to be there to see what happens.

"Abner Mares is easily one of the most accomplished and exciting fighters to come out of Mexico in recent history. Here he is trying to reach for the stars again. You've seen how exciting he is. You also know that he is a great young man outside of the ring. It's always very special for me to introduce Abner in particular.

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"I was fortunate enough to know Jermall and Julian since early in their career. They are extremely talented fighters and their records prove that.

"Jermall Charlo is the kind of champion who doesn't shy away from fighting anyone. He's always ready and prepared and looking for the best challenges. These are the fights that turn champions into legends.

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"Jermall and his brother are truly two great young men. They always carried themselves very well and you could always feel their hunger to be world champions. It's really just the first step. The question is then where you take it. Can you become a superstar? That is what both brothers have in them.

"Jermall already has two title defenses and has come out successful. He continues to take on anyone and that's just the kind of warrior he is.

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"Julian is another truly exciting and gifted fighter who has been waiting for his opportunity for the world title. We often hear fighters say they're hungry, but Julian defines that. I don't think I've ever met anyone who was so ready for this. This is really an amazing matchup.

"Julian Williams hasn't lost a round in his last 10 fights. I challenge you to find another guy in the sport who has performed like that. He's been waiting for his opportunity and now it is here.

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"This is the first time that I'm introducing Erickson Lubin and I hope it's the first time of many. He has the flash and power in both hands, combined with the charisma to be a big star. Don't miss his fight."

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STEPHEN ESPINOZA, Executive VP & General Manager, SHOWTIME Sports

"In 2016 no other network has made a more significant contribution to the sport of boxing than SHOWTIME. Through Saturday we will have televised more than 22 world title fights. Overall, across our platforms we will have televised 68 total fights and we're thrilled to be this committed to the sport.

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"It's not just quantity we're delivering; we're bringing the most significant matchups in the sport. This card is another example of it.

"This card starts an incredible run over the next five months. All of the fights we have coming up are top 10 versus top 10. These four guys here are top six in their division if you ask anybody. Some have them even higher. The fact that they're willing to fight each other is great for this sport. This is a card we're very proud of.

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"The main event fighters have fought a combined 24 times on the SHOWTIME platforms. Jesus and Abner will be the fifth featherweight world title we've televised this year. This is an exciting time in the history of the featherweight division and we're excited to bring it to you."