Japan's Yuma Kagiyama defended his ISU Grand Prix of Figure Skating's NHK Trophy men's title on Saturday, while compatriot Kaori Sakamoto, a three-time world champion, won the women's competition.Kagiyama finished with a total of 300.09 points, finishing way ahead of Italian Daniel Grassl's 264.85 in second.The Beijing Winter Olympics silver medalist and leader after Friday's short program, cruised to victory despite falling on his opening quad flip as he went on to score 194.39 in the free skate at Tokyo's Yoyogi National Stadium."I'm really frustrated," Kagiyama said about his early error…READ FULL ARTICLE