Roger Federer and Novak Djokovic Nitto ATP Finals, Tennis, London, UK - 14 Nov 2019 Roger Federer (SUI) during his third round robin match against Serbian player Novak Djokovic (SRB) in London, O2 Arena., Image: 483012755, License: Rights-managed, Restrictions: , Model Release: no, Credit line: Isopix / Shutterstock Editorial / Profimedia