Alcaraz beats Cilic and could become youngest ever world number one: What does he need to achieve it? | Marca
Roger Federer creates history upon return to World No 1 | Sports News,The Indian Express
Ukraine's Snigur stuns former number one Halep in first round | Reuters
Cameron Norrie becomes British tennis number one after reaching Indian Wells semi-finals | ITV News
Kelley Pulls Off Win At Number One Singles | Arizona Christian University Athletics
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US Open: Three players in contention for the men's world number one spot
Nadal: 'Number one ranking no longer the fight' - Sportstar
Yu Fujioka - Women's Tennis - University of South Alabama Athletics
Men's ATP rankings top 50 players 2022 | Statista
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Emma Raducanu - Wikipedia
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
Garbiñe Muguruza crowned the world's number one tennis player | BBVA
Ash Barty keeps tennis world No 1 ranking despite missing grand slams | Ash Barty | The Guardian
:focal(1129x663:1131x661)/origin-imgresizer.eurosport.com/2018/02/16/2272563-47350050-2560-1440.jpg "Federer becomes oldest ATP world number one - Eurosport")
Federer becomes oldest ATP world number one - Eurosport
World No.1 Ashleigh Barty hopes 2020 will be golden year
Djokovic to clinch record seventh year-end number one spot | Reuters
Carlos Alcaraz youngest year-end No. 1 in ATP rankings | AP News
Roger Federer and Novak Djokovic Battle for No. 1 Ranking - The New York Times
Russia's number one ranked tennis player Daria Kasatkina comes out as gay | World News | Sky News
5 things to know about Carlos Alcaraz, the teen who is world number one after US Open victory
Dan Evans on rise to British number one from being unranked in April 2018 - BBC Sport
