ATP Finals, la fotogallery Federer – DjokovicBy Redazione Sportiva - 22/11/2015 Novak Djokovic (getty images) Roger Federer (getty images) Novak Djokovic (getty images) Roger Federer (getty images) Roger Federer (getty images) Novak Djokovic (getty images) Novak Djokovic (getty images) Roger Federer (getty images) (getty images)