World number one Alcaraz ruled out of Australian Open due to injury - Read Qatar Tribune on the go for unrivalled news coverage
Official Site of the 2023 US Open Tennis Championships - A USTA Event
ATP rankings - Wikipedia
Alcaraz wins US Open and becomes youngest world number one | Tennis News | Al Jazeera
Tennis: Barty a win away from world number one | Reuters.com
World number one Iga Świątek goes down to Jessica Pegula in upset loss at United Cup - ABC News
Former world number one Halep provisionally suspended for doping | Reuters
World number one tennis player Ash Barty retires at 25 - BusinessToday
Djokovic equals Graf's world number one record
US Open final between Alcaraz and Ruud will also determine world number one | Marca
Medvedev replaces Djokovic as world number one
Mastercard Incorporated - Mastercard Adds World Number One Tennis Player Naomi Osaka to Global Sponsorship Portfolio
Medvedev will become world number one after Djokovic's defeat at Dubai Open
Ashleigh Barty: World number one makes shock call to quit tennis - BBC News
Nadal: 'Number one ranking no longer the fight' - Sportstar
Alcaraz wins US Open and becomes youngest world number one | Tennis News | Al Jazeera
List of ATP number 1 ranked singles tennis players - Wikipedia
Best tennis players in the world: From Roger Federer to Serena Williams
World No. 1 Tennis Player Tests Corona Positive
World No.1 Ashleigh Barty hopes 2020 will be golden year
Australia's Ashleigh Barty Is Now the Number One Female Tennis Player
Simona Halep provisionally suspended from tennis for doping | CTV News
Carlos Alcaraz Takes World No. 1 Ranking Into The Miami Open - The New York Times
Novak Djokovic: World number one hopeful for 'a positive result' on US tournaments participation | CNN
Tennis-World number one Barty uncertain of schedule as Osaka closes in | Reuters
