The Tennis Purist: The Curious Case of Roger Federer
Roger Federer calls for zero tolerance amid Maria Sharapova's doping ban | India.com
Australian Open 2019: Dan Evans shoulders slim British hopes against Roger Federer | Sports News,The Indian Express
Roger Federer - Wikipedia
Federer will have better idea about injury return in April/May | Reuters
The Tennis Purist: The Curious Case of Roger Federer
Roger Federer Enters BNP Paribas Open with No. 1 World Ranking
Roger Federer concerned about demands of tennis tour
Roger Federer wants doping crackdown in wake of Maria Sharapova failing test | Roger Federer | The Guardian
Roger Federer, Rafael Nadal weigh in on Viktor Troicki's doping ban - Sports Illustrated
Roger Federer Calls for Greater Anti-Doping Investment in Tennis
Tennis: Federer defends doping procedures, but wants more testing | GMA News Online
Federer backs Sharapova doping ban | The Guardian Nigeria News - Nigeria and World News — Sport — The Guardian Nigeria News – Nigeria and World News
Roger Federer is retiring from tennis -- but his mark on the sport is indelible
Roger Federer still surprised at lack of doping tests
Roger Federer explains how inconsistent drug testing can be at times
Roger Federer frustrated by tennis' anti-doping programme – The Irish Times
Federer Sneaks Past Evans Into 3rd Round at Australian Open - Perfect Tennis
Tennis: Dopage: Federer a été l'un des plus contrôlés en 2019 - Le Matin
Wimbledon: Serena Williams asks for fair treatment over doping tests, Federer seconds
Roger Federer announces retirement from tennis
Roger Federer: We can do more to stop doping
