Zverev: 'I'm not thinking about being world no. 1 or ending 2018 there'
Top 5 WTA Upsets 2018 (No.1): Sasnovich shocks title favorite Kvitova in Wimbledon opener
Federer marks No.1 ranking with 98th title in Stuttgart - EgyptToday
Tennis finishes first meet of season - Northwest Missouri State Athletics
U.S. Open 2018: No. 1-seed Simona Halep upset in 1st round by No. 44 Kaia Kanepi – The Denver Post
:focal(1211x566:1213x564)/origin-imgresizer.eurosport.com/2018/01/18/2248178-46862350-2560-1440.jpg "World no.1 Simona Halep makes light work of Eugenie Bouchard in second round - Eurosport")
World no.1 Simona Halep makes light work of Eugenie Bouchard in second round - Eurosport
2018 Novak Djokovic tennis season - Wikipedia
Tennis: 4 contenders for the year-end No. 1 World Ranking
Wimbledon 2018: World No.1 Simona Halep Knocked Out In Third Round; Rafael Nadal, Novak Djokovic Advance | Tennis News
Tennis Rankings: Novak Djokovic displaces Roger Federer as World No 2; Simona Halep to finish as World No 1 | Sports News,The Indian Express
2018 champion Kerber vs. No. 1 Barty in Wimbledon semifinals - ABC News
Roger Federer reclaims No. 1 ranking by reaching Stuttgart final
Wimbledon 2021: World No 1 Ash Barty Beats 2018 Champ Angelique Kerber To Enter Final
Wimbledon 2018: Roger Federer remains the man to beat; Marin Cilic likely to be biggest contender outside Big Four-Sports News , Firstpost
Rafael Nadal: No. 1 headed to 2018 Australian Open
List of WTA number 1 ranked singles tennis players - Wikipedia
No. 1 Barty Beats 2018 Champ Kerber To Reach Wimbledon Final
New world No.1 Roger Federer wins Rotterdam Open - Vanguard News
Djokovic Presented Year-End ATP World Tour No. 1 Trophy At Nitto ATP Finals - Tennis TourTalk
ATP Rankings Movers: Roger Federer Returns To No. 1 | ATP Tour | Tennis
No. 1 Novak Djokovic advances in Australia; Stan Wawrinka out
2018 high school spring previews: Boys tennis
