Novak Djokovic tops first 2019 ATP rankings; Rafael Nadal in second place - The Statesman
Roger Federer slumps further in ATP rankings, Novak Djokovic holds top spot | Tennis News
Top 10 Men's tennis players (ATP Ranking history) from 2002 to 2019 - YouTube
Ranking Reaction: Taylor Fritz breaks into Top 10 at No. 8, Novak Djokovic kicks off 200th straight week in Top 10
Tennis: Serbian Sensation Novak Djokov Leads ATP Rankings, Roger Federer Drops to Sixth | India.com
Wimbledon 2019: Why Rafael Nadal's gripe with organisers' special seeding formula over ATP Rankings makes sense-Sports News , Firstpost
ATP Tour Press Release: Five New Names In Year-End Top 10 ATP Rankings | ATP Tour | Tennis
Oracle/ITA Division II Men's Doubles Rankings — April 3, 2019 - ITA #WeAreCollegeTennis
2019 WTA Tour - Wikipedia
ATP RANKINGS. Alcaraz, Nadal, Ruud, Medvedev at the top with Musetti at a career high - Tennis Tonic - News, Predictions, H2H, Live Scores, stats
ATP Tour – Final 2020 rankings – Open Court
Latest ATP Men's Singles Rankings 2019: Novak Djokovic Stays Atop World Tennis Standings, Rafael Nadal Second | 🎾 LatestLY
Justin Roberts – Top 800 in ATP Singles' Ranking – Bahamas Lawn Tennis Association
Latest ATP & WTA Rankings - Tsonga, Stosur Jump Up the Rankings
List of ATP number 1 ranked singles tennis players - Wikipedia
ATP Active Tennis Players Power Rankings for June 2019
ATP Rankings Update 11 February 2019 - YouTube
In Italian Tennis, It's the Men's Turn to Shine - The New York Times
ATP Ranking Update: Alcaraz And Nadal Make A History As No. 1 And No. 2
ATP Rankings 2019: Rafael Nadal No.1 men's player after overtaking Novak Djokovic | London Evening Standard | Evening Standard
ATP Tour By The Numbers September 2019 | ATP Tour | Tennis
Tennis: Nadal has collected the most ATP rankings points in 2019 | MARCA in English
Serbia motivated by 2019 Davis Cup heartbreak, says Djokovic | Reuters
