How does one begin to measure toughness? It’s probably most akin to gauging or producing team chemistry, and about as tangible. Lucky for Kei Nishikori and his coach, American legend Michael Chang, both have seemed to arrive for them almost effortlessly, with favorable results nearly as rapidly.
Since naming Chang, the former world No. 2 and the 1989 French Open champion, to a support team that includes longtime coach Dante Bottini, Nishikori’s game and results have continued to grow. After turning pro in 2007, the top-ranked Japanese player slowly rose in the rankings up to a career-high No 11 for a handful of weeks in 2013, ending that season at No 17. But talk about impact. Since Chang began working with him, Nishikori, now 25, has won seven of his 10 ATP titles (including three this season), broken into the top five (he’s currently No. 4 in the world), and made it to his first grand slam final at last year’s U.S. Open.