Highlights of Novak Djokovic's easy win over Alexander Zverev in Shanghai Masters 1000 semifinal.

Big service and big inside out forehand attack from John Isner. But Novak Djokovic finds the balance and the precision to deliver a perfect lob and win the point.

Watch highlights of Serena Williams' fight against her young fellow countrywoman Catherine Mcnally (17 yo) to join third round of this 2019 US Open.

Watch how Ivan Dodig knocked out Marcelo Melo in Miami's double.

Huge defense from Kirsten Flipkens against Jennifer Brady in Miami.