Four of Japan's six biathlon competitors have postponed their arrival in South Korea for the Pyeongchang Winter Olympics after a team member was diagnosed with the flu, coach Isao Yamase said Monday.Fuyuko Tachizaki, who earned silver and bronze at the 2011 Asian Games, received the diagnosis after returning home from the European championships in Italy, where she took bronze in the women's 7.5-kilometer sprint on Jan. 26.Three of Tachizaki's teammates -- her husband Mikito, as well as women's competitors Yurie Tanaka and Sari Furuya -- later reported feeling unwell.The four, who were sched…READ FULL ARTICLE