Nana Takagi, who with her younger sister Miho became the first pair of speed skating siblings to both appear at three Olympic Winter Games, announced her retirement on Tuesday.The 29-year-old captured two gold medals at the Pyeongchang Games in 2018, in the team pursuit and mass start. She suffered two falls at the Beijing Games in February, including one that likely cost Japan gold in the women's team pursuit final."I've decided to end my career as an athlete," Nana said at a press conference in Tokyo."My sister helped me get this far. I was able to take the ice as Nana Takagi and not as M…READ FULL ARTICLE