Winning the U.S. Open was an out-of-this-world thrill for Marin Cilic, who gives a lot of credit to Croatian tennis pioneer and coach Goran Ivanisevic for guiding him to grand slam glory.

Sep 10, 2014 10:46 AM EDT

Despite boasting 34 grand slam singles titles between them, Serena Williams and Roger Federer were forced to share the spotlight with a 15-year-old at the U.S. Open on Tuesday as all three advanced to the second round.

Aug 27, 2014 09:31 AM EDT