Kei Nishikori is a professional Japanese tennis player who is the second male Japanese player to have been ranked in the top 5 in singles. Who is Kei Nishikori? Childhood, Parents, Education, and Nationality Kei’s full name in Japanese is (錦織 圭). He was born in Matsue, Shimane, Japan in the year 1989. On 29 December,…