List of ATP number 1 ranked doubles tennis players - Wikipedia

List of WTA number 1 ranked singles tennis players - Wikipedia

Nick Kyrgios - Wikipedia

Novak Djokovic secures record-extending 8th year-end No. 1 ranking after defeating Holger Rune in ATP Finals clash

Daniel Nestor - Wikiwand

2021 ATP Tour - Wikipedia

Women's Tennis: 5 players who spent the most consecutive weeks as WTA World Number 1

List of ATP number 1 ranked singles tennis players - Wikipedia

Rajeev Ram - Wikipedia

List of ATP number 1 ranked singles tennis players - Wikipedia

Nicolás Jarry - Wikiwand

List of ATP number 1 ranked singles tennis players - Wikipedia

Alexander Zverev - Wikipedia

Novak Djokovic surpasses Rafael Nadal in number of matches played during Paris Masters 2023

2022 ATP Tour - Wikipedia

Rafael Nadal and the Top 23 Left-Handers in Tennis History, News, Scores, Highlights, Stats, and Rumors