Tennis: Federer defends doping procedures, but wants more testing | GMA News Online
Dopage: Roger Federer veut plus de contrôles dans le tennis - L'Express
Roger Federer: World No 1 had more than 14 anti-doping tests in 2017 | Tennis | Sport | Express.co.uk
Roger Federer is retiring from tennis -- but his mark on the sport is indelible
Sharapova fiasco: Roger Federer roots for consistent global dope testing
Federer calls for more frequent doping tests
Tennis on the right track in anti-doping fight - Federer
Roger Federer still surprised at lack of doping tests
Tennis: Dopage: Federer a été l'un des plus contrôlés en 2019 - Le Matin
Roger Federer Calls for Greater Anti-Doping Investment in Tennis
Roger Federer, Rafael Nadal weigh in on Viktor Troicki's doping ban - Sports Illustrated
Federer wants more doping tests in tennis | Tennis News – India TV
Federer will have better idea about injury return in April/May | Reuters
Roger Federer frustrated by tennis' anti-doping programme – The Irish Times
Federer backs Sharapova doping ban | The Guardian Nigeria News - Nigeria and World News — Sport — The Guardian Nigeria News – Nigeria and World News
Tennis Has a Doping Problem
: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
Roger Federer - Wikipedia
Roger Federer: We can do more to stop doping
Roger Federer News and Articles | Salon.com
Roger Federer concerned about demands of tennis tour
The Tennis Purist: The Curious Case of Roger Federer
Shocked Federer breaks silence on Sharapova doping scandal
