Iga Swiatek, No. 1 Seed at U.S. Open, Loses in Fourth Round - The New York Times
Tennis Masters Series singles records and statistics - Wikipedia
Carlos Alcaraz Expected To Be No. 1 Seed At French Open
ATP Rankings 2019: Rafael Nadal No.1 men's player after overtaking Novak Djokovic | London Evening Standard | Evening Standard
List of ATP number 1 ranked singles tennis players - Wikipedia
Carlos Alcaraz vs. Frances Tiafoe result, score, highlights as Spanish teenager makes US Open final | Sporting News
Roger Federer Is World No. 1 Again Despite Not Playing for 2 Months
Ranking of the top 150 male tennis players in the world for 2021 - Novak Djokovic Still No. 1 - CEOWORLD magazine
From Grand Slam champ to World No.1, the rise of Iga Swiatek
Kunieda, de Groot finish 2022 as World No. 1 while Vink celebrates career's first
Chart: Roger Federer Crowned Oldest No. 1 in Tennis at Age 36 | Statista
Tennis 2022: Novak Djokovic loses World No.1 ranking
Swiatek confirmed new women's world No. 1 in latest WTA rankings | Daily Sabah
Tennis world number ones in pictures: Here is every man to hold top spot since computer rankings were introduced | Novak Djokovic record, Roger Federer, Rafael Nadal, Daniil Medvedev, Carlos Alcaraz
Caroline Wozniacki: Is She Really the No. 1 Women's Tennis Player in the World? | News, Scores, Highlights, Stats, and Rumors | Bleacher Report
Carlos Alcaraz becomes the youngest No. 1 men's tennis player with his U.S. Open win | LAist - NPR News for Southern California - 89.3 FM
Carlos Alcaraz becomes youngest world no. 1 in history of men's tennis as he wins US
Cameron Norrie becomes British tennis number one after reaching Indian Wells semi-finals | ITV News
World No 1 woman tennis player Ash Barty announces shock retirement at 25 : The Tribune India
Iga Świątek seals world No. 1 spot, becoming first Pole to top tennis rankings | Notes From Poland
Sabalenka, soon to be world No. 1, cruises into U.S. Open semifinals | CBC Sports
Roger Federer, 36, aims to become oldest world No.1 tennis player in history
Aryna Sabalenka reveals initial reaction to new No. 1 ranking at US Open – NBC New York
First Among Equals: World No. 1 Record Breakers & Shakers | ATP Tour | Tennis
Nadal, Alcaraz among five men fighting for world No. 1 ranking at 2022 US Open - Official Site of the 2023 US Open Tennis Championships - A USTA Event
