2018 Nitto ATP FINALS Novak Djokovic (SRB) defeated John Isner (USA) 64 63 Photo © Ray Giubilo This image may not be reproduced or sold to third parties.

Roger Federer (SUI) Tennis - AUSTRALIAN OPEN 2016 - Grand Slam ATP / WTA - Melbourne Park - Melbourne - Victoria - Australia - 26 January 2016.