Who has beaten Novak Djokovic at a Grand Slam tournament when he was number one? - Quora
Roland Garros, Paris, France. 07th June, 2015. Novak Djokovic of Serbia holds his runners-up trophy after Wawrinka defeated Djokovic in the final of the men's singles at the French Open, Stade Roland
Novak Djokovic of Serbia holds the runners-up trophy after losing his French Open men's final match against Stan Wawrinka of Switzerland at Roland Garros in Paris on June 7, 2015. Wawrinka defeated
French Open 2015: Winners and Losers from Roland Garros | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
Roland Garros 2015 – Novak Djokovic
WATCH: When Stan Wawrinka Stunned Novak Djokovic for French Open Title - EssentiallySports
RG Classic Match: Wawrinka - Djokovic (final 2015) - Roland-Garros - The 2023 Roland-Garros Tournament official site
French Open 2015: Novak Djokovic, Andy Murray enter fourth round at Roland Garros | India.com