Undefeated RING No. 1-rated junior lightweight Takashi Uchiyama will defend his WBA belt against Israel Perez on Dec. 31 at the Ota City General Gym in Tokyo, Japan, Perez’s promoter, Sampson Lewkowicz, has informed RingTV.com.

Uchiyama (21-0-1, 17 knockouts), 34, will be making the ninth defense of his belt and was last in action for a unanimous decision over Daiki Kaneko in December.

Perez (27-2-1, 16 KOs). 35, is 18-0-1 with nine knockouts since falling by unanimous decision to Luis Fuente in March 2003 and is coming off an eighth-round stoppage over Carlos Ricardo Rodriguez in August.

SHINSUKE YAMANAKA RETURNS ON OCT. 22 IN JAPAN

RING No. 1-rated bantamweight Shinsuke Yamanaka (21-0-2, 16 KOs) will be making the seventh defense of his WBC belt when he meets Suriyan Sor Rungvisai (37-5-1, 16 KOs) on Oct. 22 at the Yoyogi #2 Gymnasium, Tokyo, Japan, according to WBC President Mauricio Sulaiman.

Yamanaka, 32, will be after his sixth consecutive stoppage win in the mandatory bout, having last been in action for a ninth-round knockout of Stephane Jamoye in April.

CARLOS CUADRAS TO DEFEND IN WASHINGTON, D.C., ON NOV. 13

RING No. 2-rated junior bantamweight Carlos Cuadras (30-0-1, 24 KOs) will defend his WBC title against Sonny Boy Jaro (37-13-5, 27 KOs) in Washington, D.C., as part of The Fight For Children charity event on Nov. 13, according to Sulaiman.