6 Dec. 2018
London, United Kingdom
Tennis player Alexander Zverev of Germany in action during his semi-final match against Switzerland's Roger Federer at the ATP Finals at the O2, London, Britain, November 17, 2018. Action Images via Reuters/Andrew Couldridge SEARCH "POY SPORTS" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2018 PACKAGES. TPX IMAGES OF THE DAY.