Five WTA events this season, with three semifinal runs and two quarterfinal appearances, but zero titles won. The post Serena Williams’ Championship Formula Comes Up as Iga Swiatek Struggles to Cross ...

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.