Over the past year and a half, several former players and analysts have wondered about Novak Djokovic's real chances of ...

Czech teenager Jakub Mensik upset Novak Djokovic 7-6 (7/4), 7-6 (7/4) to win the Miami Open at Hard Rock Stadium on Sunday, denying the Serb his 100th career title. The 19-year-old, ranked 54th in ...