Naomi Osaka stunned world No. 5 Venus Williams in straight sets in the second round of the Hong Kong Open on Wednesday.It was No. 64 Osaka's first victory over the former top-ranked 37-year-old Williams, who had won their only past meeting at Wimbledon this year in the round of 32.Osaka, unseeded at the tournament at Hong Kong's Victoria Park, reached the quarterfinals by eliminating the American second seed 7-5, 6-2 in 1 hour, 24 minutes.The 19-year-old rising Japanese star scalped yet another giant in women's tennis, following her upset of No. 6 and then defending champion Angelique Kerbe…READ FULL ARTICLE