They are friends and monumental rivals, and one will need to overcome the other in order to win Olympic gold on the ice at February's Pyeongchang Olympics.South Korea's Lee Sang Hwa is the two-time defending Olympic champion who now stands between her friend, Japan's Nao Kodaira, and the 500-meter women's speed skating gold medal."It (Olympic gold) has been my goal since the start," Kodaira said recently.Although the 31-year-old Kodaira is nearly three years older, she is now a full-fledged rival, having gone undefeated last season over 500 meters. And as the top women sprinters from East A…READ FULL ARTICLE