Ash Barty, World Tennis No. 1, to Retire at 25 After 3 Grand Slam Wins - Bloomberg
Rafael Nadal: How can Roger Federer regain world No 1 spot without playing? | Tennis | Sport | Express.co.uk
ATP rankings - Wikipedia
Most weeks at number 1 ATP rankings all-time 1973-2021 | Statista
Naomi Osaka grabs No. 1 women's tennis ranking with Australian Open victory - MarketWatch
Shock loss costs Medvedev No. 1 rank, Brooksby beats Tsitsipas at Indian Wells | Reuters
Tennis-Shock loss costs Medvedev No. 1 rank, Brooksby beats Tsitsipas at Indian Wells | Reuters.com
Naomi Osaka set to return to WTA World No.1 ranking
List of ATP number 1 ranked singles tennis players - Wikiwand
I don't want to go into discussion" - Novak Djokovic on Carlos Alcaraz securing the year-ending No. 1 rank
US Open: Nadal and Cilic exits guarantee new major winner as Alcaraz hunts No.1 rank
Who is the world No.1 in women's tennis? Updated WTA rankings and explainer | Sporting News
List of WTA number 1 ranked singles tennis players - Wikipedia
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List of ATP number 1 ranked singles tennis players - Wikipedia
Medvedev becomes new tennis No. 1, up for rematch with Nadal | Daily Sabah
Polish tennis star Iga Swiatek defeats Naomi Osaka to win Miami Open ahead of rise to No.1 rank - KESQ
Who are Britain's No.1 male and female tennis players ahead of French Open? | Sporting News
Division I Women's ITA Collegiate Tennis National Preseason Rankings Sponsored by Tennis-Point – September 6th - ITA #WeAreCollegeTennis
Tennis: Naomi Osaka returns to WTA world No. 1 ranking
Tennis Channel on Twitter: "On August 18, 2008 @RafaelNadal achieved his first World No. 1 ranking. Nadal ended Roger Federer's record reign of 237 consecutive weeks as world No. 1 in summiting
ATP rankings - Wikipedia
