(Olympics) S. Korean bobsledder promises improved performance in upcoming 4-man event
By Chang Dong-woo
PYEONGCHANG, South Korea, Feb. 19 (Yonhap) -- South Korean bobsleigh pilot Won Yun-jong on Monday promised to up his game in the four-man event later this week, after coming up empty-handed in the two-man competition at the PyeongCha