Middleweight boxer Ryota Murata will join other Japanese star fighters in a Dec. 30 event at Ariake Colosseum, where he will take on Mexico's Bruno Sandoval, Teiken Gym announced on Thursday.

It will be the 12th professional bout for the unbeaten Murata, who has three knockout victories this year.

"I've fought in January, May and July and won them in good ways," the 30-year-old Murata, who captured the gold medal in the middleweight division at the 2012 London Olympics, said at the gym. "I wanted to keep the momentum going, so I'm excited to have another fight (within this year)."