The tennis player turned pro in 2008 and is now back in the top 10 as he prepares for the Rolex Paris Masters.

Former players often run big events, and they have to deal with such requests as better food and accommodations. “As tournament director you know that not everyone is going to be happy,” one said.

Players must adjust to the differences, and that has led to complaints about consistency. The ATP is trying to solve the problem.

His students, including Tracy Austin, Maria Sharapova, Pete Sampras and Lindsay Davenport, developed their ground strokes through his regimen of intense repetition.

Roger Federer, who helped create the team event in 2017, said “the first year was definitely a highlight.” The cup is now in its seventh year.

“It’s amazing I’m going to get to go play just a really fun event that I enjoy with all of my friends,” he said.