By A Mystery Man Writer
As Roger Federer Retires, Two Great Rivalries Come to an End - The New York Times
Nadal Unmasks Rift With Federer - The New York Times
The Tennis 128 Archives - Heavy Topspin
8 Grand Slam Finals That Pitted Rafael Nadal Against Roger Federer - The New York Times
Rafael Nadal Owns Roger Federer at Roland Garros - The New York Times
Where's Federer v Nadal on the all-time rivalry list? - Quora
French Open: Nadal Beats Federer - The New York Times
Federer in Grand Slam finals: Heartbreaking losses; six to Nadal, four to Djokovic - Sportstar
Rafael Nadal Owns Roger Federer at Roland Garros - The New York Times
Only a miracle will stop Novak Djokovic at Wimbledon