Tennis

Novak Djokovic, of Serbia, celebrates after defeating Denis Kudla, of the United States, 6-3, 6-4, 6-2 during the third round of the U.S. Open tennis championships Friday, Aug. 30, 2019, in New York. (AP Photo/Charles Krupa)

El suizo Roger Federer devuelve ante el británico Daniel Evans en la tercera ronda del Abierto de Estados Unidos, el viernes 30 de agosto de 2019, en Nueva York. (AP Foto/Sarah Stier)

Novak Djokovic, of Serbia, returns to Denis Kudla during the third round of the U.S. Open tennis championships Friday, Aug. 30, 2019, in New York. (AP Photo/Charles Krupa)

Coco Gauff, left, and Catherine McNally, both of the United States, talk during a first round doubles match against Julia Goerges, of Germany, and Katerina Siniakova, of the Czech Republic, at the US Open tennis championships Friday, Aug. 30, 2019, in New York. (AP Photo/Kevin Hagen)

Marin Cilic, of Croatia, falls to the court during a match against Cedrik-Marcel Stebe, of Germany, during the second round of the U.S. Open tennis tournament Thursday, Aug. 29, 2019, in New York. (AP Photo/Adam Hunger)

Coco Gauff. of the United States, celebrates after defeating Timea Babos, of Hungary, during the second round of the U.S. Open tennis tournament in New York, Thursday, Aug. 29, 2019. (AP Photo/Charles Krupa)

Roger Federer, of Switzerland, reacts after scoring a point against Damir Dzumhur, of Bosnia, during the second round of the US Open tennis championships Wednesday, Aug. 28, 2019, in New York. (AP Photo/Eduardo Munoz Alvarez)

FILE - In this May 4, 2002, file photo, Los Angeles Lakers' Kobe Bryant, left, and Shaquille O'Neal celebrate after winning Game 5 of the Western Conference semifinals against the San Antonio Spurs, in Los Angeles. Bryant downplayed talk of a reignited feud with Shaquille O'Neal, saying there is "nothing new" that has been said recently between the former teammates. Bryant had recently said that if O'Neal had worked harder, they could have won 12 rings together with the Los Angeles Lakers. O'Neal fired back on social media that they could have won more if Bryant had passed him the ball more often. But Bryant said Thursday, Aug. 29, 2019, during a visit to the U.S. Open tennis tournament that the comments don't mean they are fighting again. (AP Photo/Mark J. Terrill)

Coco Gauff, of the United States, reacts after defeating Anastasia Potapova, of Russia, during the first round of the US Open tennis tournament Tuesday, Aug. 27, 2019, in New York. (AP Photo/Julie Jacobson)

Serena Williams, of the United States, raises her fist after defeating Caty McNally, of the United States, during the second round of the U.S. Open tennis tournament in New York, Wednesday, Aug. 28, 2019. Williams won 5-7, 6-3, 6-1. (AP Photo/Charles Krupa)