ATP Rankings Movers: Roger Federer Returns To No. 1 | ATP Tour | Tennis
Wimbledon 2018: World No.1 Simona Halep Knocked Out In Third Round; Rafael Nadal, Novak Djokovic Advance | Tennis News
Wimbledon 2018: Roger Federer remains the man to beat; Marin Cilic likely to be biggest contender outside Big Four-Sports News , Firstpost
Tennis finishes first meet of season - Northwest Missouri State Athletics
Wimbledon 2021: World No 1 Ash Barty Beats 2018 Champ Angelique Kerber To Enter Final
Zverev: 'I'm not thinking about being world no. 1 or ending 2018 there'
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Roger Federer Pursues the No. 1 Ranking Again. Why Not? - The New York Times
WTA Rankings: Simona Halep finishes as World No 1 for second year running
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No. 1 Halep wins suspended match, advances in Cincinnati - Sportsnet.ca
2018 champion Angelique Kerber, No. 1 Ash Barty into Wimbledon semifinals | Sports News,The Indian Express
Rafael Nadal: No. 1 headed to 2018 Australian Open
List of WTA number 1 ranked singles tennis players - Wikipedia
U.S. Open 2018: No. 1-seed Simona Halep upset in 1st round by No. 44 Kaia Kanepi – The Denver Post
Djokovic Completes Remarkable Return To No. 1 | ATP Tour | Tennis
2018 champion Kerber vs. No. 1 Barty in Wimbledon semifinals | AP News
Novak Djokovic begins No. 1 charge as Roger Federer learns first Shanghai opponent | Metro News
Throwback: When Roger Federer won the 2018 Rotterdam Open to become the oldest World No. 1
Djokovic Presented Year-End ATP World Tour No. 1 Trophy At Nitto ATP Finals - Tennis TourTalk
Tennis: 4 contenders for the year-end No. 1 World Ranking
Roger Federer replaces Rafael Nadal as tennis World No. 1, Novak Djokovic slips | Tennis News - Hindustan Times
No. 1 Novak Djokovic advances in Australia; Stan Wawrinka out
:focal(1020x328:1022x326)/origin-imgresizer.eurosport.com/2018/02/17/2273705-47372890-2560-1440.jpg "New world No 1 Federer reaches Rotterdam final - Eurosport")