TOKYO, JAPAN - OCTOBER 09:  Winner Nick Kyrgios of Australia (R) and runner-up David Goffin of Belgium pose for photographs after men's singles final match against on day seven of Rakuten Open 2016 at Ariake Colosseum on October 9, 2016 in Tokyo, Japan.  (Photo by Koji Watanabe/Getty Images)
TOKYO, JAPAN - OCTOBER 09:  David Goffin of Belgium looks at winner's trophy after losing the men's singles final match against Nick Kyrgios of Australia on day seven of Rakuten Open 2016 at Ariake Colosseum on October 9, 2016 in Tokyo, Japan.  (Photo by Chung Sung-Jun/Getty Images)
TOKYO, JAPAN - OCTOBER 09:  Nick Kyrgios of Australia poses with the trophy after winning the men's singles final match against David Goffin of Belgium on day seven of Rakuten Open 2016 at Ariake Colosseum on October 9, 2016 in Tokyo, Japan.  (Photo by Koji Watanabe/Getty Images)