Police are set to refer grand champion Harumafuji to prosecutors by the end of the year on suspicion of assaulting lower-ranked sumo wrestler Takanoiwa in a drunken brawl, investigative sources said Tuesday.Under questioning late last week, the 33-year-old Mongolian yokozuna has admitted to striking 27-year-old Takanoiwa with his palms, his fists and a karaoke machine remote control, according to the sources.Takanoiwa is believed to have suffered head injuries after being struck with an object, but Harumafuji has denied allegations that he hit the fellow Mongolian with a beer bottle in the …READ FULL ARTICLE