Novak Djokovic was unable to complete the men's calendar-year Grand Slam following his success at the Australian Open, French Open and Wimbledon Lindsay Kimble is the Executive Editor, News at PEOPLE.

NEW YORK— “Novak, when he loses, he’s never the same after,” Daniil Medvedev said before his final-round encounter with Novak Djokovic at the US Open. “He’s different. It’s just a different mentality.

Russia's Daniil Medvedev won his first Grand Slam title by shattering Novak Djokovic's hopes of completing a calendar sweep of the majors in a one-sided US Open final. Second seed Medvedev, 25, lost ...