Two-time Wimbledon champion Andy Murray has lost in the second round to big-serving American John Isner.
John Isner believes in his chances against Rafael Nadal in the second round of the Italian Open.
Daniil Medvedev never gave Andy Murray a chance.
Defending champion Naomi Osaka has advanced to the third round of the Australian Open with a 6-0, 6-4 win over Madison Brengle in a night match on Rod Laver Arena.
Serena Williams is out of Wimbledon after she stopped playing her first-round match because of a right leg injury.