Tokyo: Kei Nishikori became the first Japanese man to break into the top 10 of the world tennis rankings on Monday.
Nishikori, who is No. 9, was assured of a place in the top 10 after beating Feliciano Lopez 6-4, 6-4 in the quarterfinals of the Madrid Open.
"It was a big goal for me to get top 10, but it's just only one week for now," Nishikori said on the ATP website. "So I have to keep playing better tennis and keep this ranking. My goal is not to get one time into the top 10. Hopefully I can keep this ranking."