US Open: Why Coco Gauff's business potential is already 'huge' ahead of Naomi Osaka match
Gauff, 15, became the youngest woman to reach the US Open’s third round since 1996 after ousting Timea Babos in a three-set thriller on Thursday night.
Coco Gauff, Serena Williams train at Mouratoglou Tennis Academy: Here's what it costs
Training isn't cheap if you're working to become a tennis star.
Coco Gauff, other youth tennis players face expensive path to the pros
For access to top trainers, parents often enroll their kids at tennis academies that cost anywhere from $50,000 to $100,000 per year.
US Open: Kristie Ahn puts corporate job on hold after first-round win
The win provided some validation for Ahn, who turned pro at age 16 after a successful amateur career but mulled retirement as recently as 2017 amid middling results on the court.
Patrick McEnroe on the U.S. Open
The U.S. Open tournament
Tennis star John Isner inks sport's first CBD endorsement deal with Defy sports drink
CBD, or cannabidoil, has grown in popularity in recent years for its perceived health benefits.
Novak Djokovic's record career earnings rise with Wimbledon championship purse
Djokovic defeated Federer via a fifth-set tiebreaker to earn the £2.35 million (about $2.95 million) winner’s share at the All-England Club.
Djokovic, Federer and tennis' top 5 highest-earning players ever
Four of the five are still active on the men's tennis tour -- but one is retiring soon.
Burgess Owens on the Serena Williams controversy
Serena Williams fined $17K
From tennis court to boardroom: How Maria Sharapova does business
Maria Sharapova on her candy brand
Cheryl Casone on Arthur Ashe Kids’ Day
Tennis and kids
Venus Williams sued for fatal Florida car crash
Venus Williams car crash lawsuit
Namath on McEnroe vs Williams: I'm a Serena fan, but won't argue with John
Nameth on McEnroe ranking comments