Unbeaten Cuban, WBA/WBO super-bantam champ Guillermo Rigondeaux (15-0, 10 KOs), 121.75, had a tough time hitting the deck twice in the seventh, but fought back hard to score a TKO victory over Hisashi Amagasa (28-5-2, 19KOs), 121.75, because of the loser’s badly swollen left cheek after the eleventh round on Wednesday in Osaka, Japan.

Rigondeaux kept his belt in a contest castigated as a mismatch, but his overconfidence might cause a couple of visits to the deck.

Prior to the stoppage, the tallies were: 105-101, 107-99 twice, all for the Cuban southpaw.