Back From a Knee Injury, Federer Tries to Catch Up - The New York Times
Roger Federer News and Articles | Salon.com
Roger Federer: World No 1 had more than 14 anti-doping tests in 2017 | Tennis | Sport | Express.co.uk
The Tennis Purist: The Curious Case of Roger Federer
Federer backs Sharapova doping ban | The Guardian Nigeria News - Nigeria and World News — Sport — The Guardian Nigeria News – Nigeria and World News
Caught on camera: Federer doping : r/tennis
Roger Federer: We can do more to stop doping
Shocked Federer breaks silence on Sharapova doping scandal
The Tennis Purist: The Curious Case of Roger Federer
Roger Federer demands more regular drug testing in tennis and greater investment in anti-doping
Roger Federer wants doping crackdown in wake of Maria Sharapova failing test | Roger Federer | The Guardian
Federer calls for more frequent doping tests
Tennis: Federer defends doping procedures, but wants more testing | GMA News Online
Roger Federer calls for zero tolerance amid Maria Sharapova's doping ban | India.com
Roger Federer still surprised at lack of doping tests
Roger Federer Calls for Greater Anti-Doping Investment in Tennis
Roger Federer was tested for doping 29 times in 2019
Australian Open 2019: Dan Evans shoulders slim British hopes against Roger Federer | Sports News,The Indian Express
Federer wants more doping tests in tennis - SWI swissinfo.ch
Roger Federer, Rafael Nadal weigh in on Viktor Troicki's doping ban - Sports Illustrated
Tennis Has a Doping Problem
Roger Federer Enters BNP Paribas Open with No. 1 World Ranking
Tennis on the right track in anti-doping fight - Federer
Sharapova fiasco: Roger Federer roots for consistent global dope testing
Roger Federer concerned about demands of tennis tour
Federer will have better idea about injury return in April/May | Reuters
Federer: 'Naive to think tennis is clean' | CNN
:focal(1751x406:1753x404)/origin-imgresizer.eurosport.com/2015/11/05/1726862-36535605-2560-1440.jpg "Why tennis should listen to Roger Federer's request for more anti-doping tests - Eurosport")