Serena Williams becomes oldest female world number one - BBC Sport
Women's Tennis : Most weeks as WTA World Number 1
Iga Swiatek 1st Polish tennis player to top world rankings | CBC Sports
The Top 10 Greatest Women's Tennis Players of All Time - HowTheyPlay
Australia's Ashleigh Barty Is Now the Number One Female Tennis Player
Emma Raducanu - Wikipedia
It's Been Quite of a Ride' - World Number 1 Iga Swiatek on Her Journey to the Top - EssentiallySports
WTA ratings - global female tennis players by number of total weeks at No. 1 | Statista
Ashleigh Barty Wins Wimbledon Women's Singles Title - The New York Times
Ashleigh Barty to become world No 1 after Birmingham win over Julia Görges | Ash Barty | The Guardian
World No. 2 Sabalenka tests positive for COVID-19, out of Indian Wells | CBC Sports
The Top 10 Greatest Women's Tennis Players of All Time - HowTheyPlay
Who is the world No.1 in women's tennis? Updated WTA rankings and explainer | Sporting News
List of WTA Number 1 Tennis Players – All World No.1s In History | STEVE G TENNIS
Pro Tennis: #1 in the World – Serena Williams & Victoria Azarenka — Kings County Tennis League
Chinese tennis teen Zheng Qinwen rockets up to No 41 in WTA rankings, Zhu Lin jumps 20 spots to world No 73 | South China Morning Post
2019 WTA Tour - Wikipedia
List of WTA number 1 ranked singles tennis players - Wikipedia
Top 10 Best Women's Tennis Players I WTA Ranking 2019 I Naomi Osaka is No. 1 - YouTube
Iga Swiatek Officially World No.1 in WTA Ranking After Superb Start to Year | Sports News Indiacom
Venus becomes the first black player to become world No 1
The greatest female tennis player of the last 50 years: the fans' verdict | Tennis | The Guardian
Ashleigh Barty, No. 1 in the ranking WTA - Slazenger Heritage
Wimbledon bans Russian and Belarusian players, but ATP and WTA slam 'unfair' move | The Japan Times
Tennis: Poland's Iga Swiatek Becomes New World No 1
