Keisuke Watanuki is the brother of Yosuke Watanuki.
Keisuke Watanuki is also a Japanese tennis player.
He was born on November 19, 1993, in Saitama, Japan.
Keisuke stands at a height of 5 feet 6 inches (1.68 m) and weighs 148-pounds (67kg).
The right-handed, two-handed backhand player Keisuke Watanuki has a career-high doubles ranking of No. 722.
28-year-old Keisuke Watanuki is currently a Tennis Coach(ATP) at Watanuki Tennis Academy.
Keisuke Watanuki has two brothers, Yosuke Watanuki (tennis player) and Yusuke Watanuki (tennis coach).
Yosuke Watanuki is a Japanese tennis player. He has a career-high ATP ranking of World No. 171 achieved on March 18, 2019, and a doubles ranking of No. 374 achieved on January 7, 2019.
Watanuki has a career-best combined rating of 2 on the junior circuit, which he attained on March 21, 2016. He won the 2016 Campeonato Internacional Juvenil de Tenis de Porto Alegre, a Grade A competition held in Porto Alegre, Brazil.
Yosuke Watanuki has prize money of $312,213.