Naomi Osaka climbed two places to world No. 4 in the latest WTA rankings released Monday, equaling the highest-ever standing by a Japanese player.The 20-year-old -- who was born in Osaka and raised in the United States by her Japanese mother and Haitian father -- started the year as No. 68 but soared up the rankings with titles at Indian Wells in March and the U.S. Open last month."I am really excited about it," Osaka told reporters at the Hong Kong Open tournament from which she has withdrawn due to back injuries. "I know that Kimiko (Date) was No. 4 too, so I think that makes us tie or so…READ FULL ARTICLE