World No. 18 and rising Japanese star Kei Nishikori has signed a brand ambassador deal with TAG Heuer, the prestigious Swiss watch brand established in 1860. The former Junior French Open Doubles champion announced his decision to become a part of the TAG Heuer family during a press conference in Tokyo on Tuesday. Nishikori joins Maria Sharapova, Leonardo DiCaprio and Leonard Hamilton as ambassadors to the organization. Other current sponsors of Nishikori are Wilson, adidas (shoes only), CupNoodle, Weider, UniQlo, WOWOW and EA Sports. Nishikori began his 2012 season by reaching the Australian Open quarterfinals, the furthest round a Japanese male player has ever reached in a Grand Slam event since 1968. World TeamTennis Marquee Player Draft includes six current or former world No. 1s from U.S.