Editorial Images
Rakuten Open 2015 - Day 3
TOKYO, JAPAN - OCTOBER 07: Kei Nishikori of Japan competes against Sam Querrey of USA during the men's singles second round match on day three of Rakuten Open 2015 at Ariake Colosseum on October 7, 2015 in Tokyo, Japan. (Photo by Koki Nagahama/Getty Images)