Sports 2 hours ago Teenager stuns Novak Djokovic at Roland Garros in another major upset CNN - By Thomas Schlachter • 2h Novak Djokovic has failed in his quest to win a record-breaking 25th grand slam title after losing to Joao Fonseca at Roland Garros. Djokovic held a 2-0 set lead, but the 19-year-old Brazilian bounced back to win the next three sets – producing the stunning victory against the Serbian superstar.