By Yuri Tarantin

27-year-old Russian junior welterweight Sergey Lipinets (10-0, 8KOs) will return on December 10th, when he takes one of his most experienced opponents to date, 28-year-old Australian puncher Leonardo 'Lenny Z' Zappavigna (35-2-1, 25KOs).

The fight will be part of the undercard to the Premier Boxing Champions doubleheader scheduled for December 10th at USC’s Galen Center in Los Angeles, California.

Richard Schaefer of RingStar Sports and Tom Brown of TGB Promotions are the co-promoters of the event.

Two titles fights will take place on the card. Former three division champion Abner Mares will finally collide with WBA 'regular' featherweight champion Jesus Cuellar in the main event. The co-feature, is the long awaited fight between International Boxing Federation super welterweight champion Jermall Charlo and mandatory challenger Julian Williams.

Mares vs. Cuellar was originally set for June 25 in Brooklyn as part of the Keith Thurman-Shawn Porter undercard. The fell out at the last minute when the New York State Athletic Commission refused to give Mares medical clearance to fight - because of an issue with his medical history. The NYSAC is very strict when it comes to approving any fighter to compete when they've had eye surgery in the past.

Back in 2008, Mares had a detached retina and underwent a lasik procedure for his right eye. The California State Athletic Commission has evaluated Mares' health and vision through a series of exams.

Yuri Tarantin covers boxing for Allboxing.ru.