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Roger Federer Is World No. 1 Again Despite Not Playing for 2 Months
List of ATP number 1 ranked singles tennis players - Wikipedia
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
Alcaraz, Ruud to play for world No. 1 ranking in 2022 US Open men's singles final - Official Site of the 2023 US Open Tennis Championships - A USTA Event
Carlos Alcaraz Takes World No. 1 Ranking Into The Miami Open - The New York Times
Sania Mirza officially crowned World No.1 in doubles - The Economic Times
Tennis-World No.1 Djokovic unsure about going to Tokyo Games | Reuters
Nadal: 'Number one ranking no longer the fight' - Sportstar
Martín Landaluce, new junior world number 1 | Rafa Nadal Academy