Boxing
 
      === Igarashi retains flyweight crown; Yamanaka knocks out Rojas ===
 
 Sendai, Japan (Sports Network) - Toshiyuki Igarashi retained his WBC flyweight
 title  Saturday with  a majority  decision over  previously undefeated  Nestor
 Narvaes.
 
 Igarashi (17-1-1, 10 KOs) won by scores of 114-112 on two cards, while a third
 judge  scored it even  at 113-113. It was Igarashi's 10th straight win and his
 first  defense  since capturing the  title in July  with a split decision over
 Sonny Boy Jaro.
 
 Narvaes (19-1-2) entered the bout with nine straight wins.
 
 On  the  same card, Shinsuke  Yamanaka knocked out  Tomas Rojas in the seventh
 round  to keep  his WBC  bantamweight  crown. The  fight was  stopped just  36
 seconds into the seventh after a Yamanaka left floored the challenger.
 
 Yamanaka (17-0-2, 12 KOs) was making his second title defense, having captured
 the belt last November. He also beat Vic Darchinyan in a unanimous decision in
 April.
 
 Rojas (39-14-1) had won three bouts since losing the WBC super flyweight crown
 in August 2011.
 
 11/03 09:06:42 ET