By Miguel Rivera

According to former four division world champion Juan Manuel Marquez, former WBC middleweight champ Julio Cesar Chavez Jr. will be a much better fighter - now that he hired strength and conditioning coach Angel "Memo" Heredia.

Chavez Jr. is scheduled to return on December 10th, when he faces Germany's Dominik Britsch in the Arena Monterrey in Mexico.

Chavez Jr. (49-2-1, 32KOs) is working hard with Memo and uncle/trainer Rodofo Chavez. The fight with Britsch is going to happen at the super middleweight limit of 168-pounds. Chavez has not fought at the super middleweight limit of 168 since March of 2014.

Marquez achieved a lot of success with Memo at this side. He credits him with playing a big role in the preparations for the fourth fight with Manny Pacquiao in 2012 - which saw Marquez secure the biggest victory of his entire career with a sixth round knockout.

Besides Marquez, Memo has worked with Jorge Arce, Hernan Marquez, Badou Jack, Lucian Bute, Jean Pascal, Ray Beltran, Wilfredo Vazquez Jr., Peter Quillin and Jose Luis Castillo.

Even with Memo at his side, Marquez cautions that Chavez Jr. needs to be disciplined in camp - something that some of his past trainers like Freddie Roach have complained about. Chavez has struggled several times to make the super middleweight limit.

"It's going to help a lot. Memo Heredia is a professional trainer who knows what he's doing. I think we have here one of the best coaches, but if you don't know what you want then you will not achieve your goal," said Marquez to ESPN Deportes.

"Besides Memo being a great coach, a lot depends on Julio Cesar Chavez Jr., who's shown evidence [in the past that there is a lack of] being disciplined. You have to be at your best, but if you are not disciplined then it doesn't serve you in your career."