2012 Roger Federer tennis season - Wikipedia
TENNIS: Del Potro reaches ATP semifinals with victory over Federer – The Oakland Press
Roger Federer | Overview | ATP Tour | Tennis
Roger Federer beats Juan Martín del Potro to reach Olympic final | Olympics 2012: tennis | The Guardian
Roger Federer's last match is doubles loss with Rafael Nadal - WHYY
Roger Federer says Juan Martin del Potro has 'better chance' of beating Rafael Nadal at US Open | Tennis News | Sky Sports
Big Three (tennis) - Wikipedia
Roger Federer vs Juan Martín del Potro - 2009 Semi-final | Roland-Garros Classic Match - YouTube
Who is Better Nadal or Federer? - Metro League
TENNIS on Twitter: "Roger Federer, Juan Martin del Potro take home ATP World Tour Awards | https://t.co/38SkJ8RNt3 https://t.co/KRqlLAE8nu" / Twitter
/cdn.vox-cdn.com/uploads/chorus_image/image/56553207/843531380.0.jpg "US Open results: Roger Federer out, Juan Martin del Potro into semis - SBNation.com")
US Open results: Roger Federer out, Juan Martin del Potro into semis - SBNation.com
The Beautiful Matchup of Roger Federer vs. 'The Most Beloved Man in Tennis'
These photos follow the career of tennis great Roger Federer : The Picture Show : NPR
Roger Federer defeats Juan Martin del Potro in longest-ever Olympic tennis match
Roger Federer - Il Re del tennis - I libri de La Gazzetta dello Sport
Federer beats Haas at Roland-Garros 2009 - Tennis Majors
Tennis great Roger Federer by numbers: Titles, records and stats
Juan Martin del Potro upends Roger Federer at US Open | CNN
Roger Federer could miss Laver Cup tennis farewell amid troublesome knee issue - Mirror Online
Federer, Del Potro to meet in Swiss Indoors final
:focal(1270x291:1272x289)/origin-imgresizer.eurosport.com/2016/03/25/1823194-38461111-2560-1440.jpg "Roger Federer withdraws from Miami Open match against Juan Martin Del Potro - Eurosport")
Roger Federer withdraws from Miami Open match against Juan Martin Del Potro - Eurosport
Juan Martin del Potro shocks Roger Federer at Indian Wells to inflict world No 1's first defeat of 2018 | The Independent | The Independent
Del Potro shocks Federer, advances to U.S. Open semis against Nadal
Juan Martín del Potro Upends Roger Federer and Disrupts an Anticipated Showdown - The New York Times
