Stefanos Tsitsipas Is Being Criticized for Mid-Match Bathroom Breaks - The New York Times
Peng Shuai: UN calls for proof of Chinese tennis star's whereabouts - CNN
The Next Frontier in Tennis: There Are (Data) Points to Be Won Everywhere
Serena Williams: The Inspiring Story of One of Tennis' Greatest Legends ( Tennis Biography Books): Geoffreys, Clayton: 9781975692292: Amazon.com: Books