The IBF world flyweight title unification bout between interim champion Ginjiro Shigeoka and Mexican champion Daniel Valladares scheduled for Aug. 11 has been postponed after the Japanese boxer sustained a foot injury, the fight's organizer said Thursday.Shigeoka became interim champion in April with a ninth-round knockout of the Philippines' Rene Mark Cuarto, which came three months after his title bout with Valladares was declared a no-contest due to an accidental head butt in the third round.Due to his injury, Shigeoka has not trained since last weekend on the advice of his doctor. A sou…READ FULL ARTICLE