Canada's Diallo is the biggest riser inside the Top 100 this week.
Martin Blackman stepped down as USTA General Manager of Player Development today, will remain as advisor until end of 2024.
Coco Gauff, Taylor Fritz and Danielle Collins will lead the U.S. vs. Canada in United Cup.
The former World No.1 jumped nearly 800 spots in the rankings this year.
The three-time Slam champion is also closing in on the year-end No.1 ranking.
The 6'8" Canadian is steadily moving up the rankings as 2024 winds down.
"I signed the paper saying they were allowed to amputate my ball—that was the last thing before the surgery that I saw," Andrey Rublev recalls.