You may not know much about the 19-year-old Jakub Mensik, but he won’t take Novak Djokovic by surprise. He’s been aware of the kid’s talent for a while now, and has even used it to help keep him sharp ...

Sabalenka, the world No. 1, beat Jessica Pegula 7-5, 6-2 in a topsy-turvy Miami Open final in which she managed to play the biggest points just a little bit better than Pegula, an American playing ...