2018 Australian Open: No. 1 Halep wins classic, will face Wozniacki in final - CBSSports.com
Rafael Nadal, Spanish professional tennis player ranked No. 1 in the world, practices on Arthur Ash court before the start of the US Open tennis championship at the USTA Billie Jean King
Djokovic Completes Remarkable Return To No. 1 | ATP Tour | Tennis
At 36, Roger Federer Becomes Oldest No. 1 In Tennis
ATP Rankings Movers: Roger Federer Returns To No. 1 | ATP Tour | Tennis
List of ATP number 1 ranked singles tennis players - Wikipedia
Ashleigh Barty and Katerina Siniakova secure WTA World No.1 rankings
U.S. Open 2018: No. 1-seed Simona Halep upset in 1st round by No. 44 Kaia Kanepi – The Denver Post
Novak Djokovic or Rafael Nadal for No 1, what shape is Simona Halep in? The 2018 questions that still need answering
Tennis Rankings: Novak Djokovic displaces Roger Federer as World No 2; Simona Halep to finish as World No 1 | Sports News,The Indian Express
ZooTennis: A Look at First ITF Junior Rankings of 2018; Quarterfinals Set at Los Angeles Futures; De Minaur Beats Mmoh to Reach ATP Brisbane Semifinals
U.S. Open 2018: No. 1-seed Simona Halep upset in 1st round by No. 44 Kaia Kanepi – The Denver Post
Serena Williams gets No. 17 seed at 2018 U.S. Open - UPI.com
US Open Tennis 2018 Results: Tuesday's Singles Bracket Winners, Scores, Stats | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
The world's No. 1 tennis star embraced an 'underdog' mentality to fuel her run to the US Open final
Swiatek wins easily, but knows who's No. 1; Nadal bloodied | AP News
Roger Federer Pursues the No. 1 Ranking Again. Why Not? - The New York Times
World no. 1 junior Chun Hsin Tseng eyes Grand Slams history - Official Site of the 2022 US Open Tennis Championships - A USTA Event
ATP Rankings Movers: Rafael Nadal Returns To No. 1 | ATP Tour | Tennis
No. 1 McNeese, No. 3 Northwestern State Set for Sunday's Women's Tennis Final - Southland Conference
Top 5 WTA Upsets 2018 (No.1): Sasnovich shocks title favorite Kvitova in Wimbledon opener
Tennis: 4 contenders for the year-end No. 1 World Ranking
