Casimero KOs Sanchez in 1

Three-division world champion John Riel Casimero needed less than a round to knock out Saul Sanchez of the United States in their super-bantamweight bout on Sunday in Yokohama, Japan.

Casimero, who came in overweight, floored Sanchez twice before the referee stopped the fight after another hard blow shook his overpowered foe.