Federer calls for more frequent doping tests - Sportsnet.ca
I.T.F.'s Antidoping Policy Poses Test for New Leader - The New York Times
Doping tests 2019: Federer, Nadal and Struff right at the forefront · tennisnet.com
: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")
Why tennis should listen to Roger Federer's request for more anti-doping tests - Eurosport
Quarter-finalists should get drug tested at every event, says Federer | Sport | The Times
Roger Federer 'feels two ways' about Olympics - Tennis
Shocked Federer breaks silence on Sharapova doping scandal
Roger Federer: World No 1 had more than 14 anti-doping tests in 2017 | Tennis | Sport | Express.co.uk
Tennis Should Boost Doping Fight, Says Federer – Evolutionary.org
Novak Djokovic slams tennis' anti-doping procedures | South China Morning Post
Federer wants more doping tests in tennis - SWI swissinfo.ch
The Tennis Purist: The Curious Case of Roger Federer
Roger Federer demands more regular drug testing in tennis and greater investment in anti-doping
Serena Williams takes on Roger Federer in legendary mixed doubles clash
Back From a Knee Injury, Federer Tries to Catch Up - The New York Times
Roger Federer, Rafael Nadal weigh in on Viktor Troicki's doping ban - Sports Illustrated
Roger Federer explains how inconsistent drug testing can be at times
I'm proud to have played with Roger Federer', says ATP ace
Wimbledon legend Roger Federer reveals he always gets drug tested - because the tester lives in his village - Mirror Online
The Tennis Purist: The Curious Case of Roger Federer
Roger Federer wants doping crackdown in wake of Maria Sharapova failing test | Roger Federer | The Guardian
ATP World Tour Finals: Roger Federer wants tennis to conduct more drug tests | Tennis News | Sky Sports
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
Tennis on the right track in anti-doping fight - Federer
