Naomi Osaka opened up about postpartum depression she struggled with after the birth of her daughter, Shai. Osaka gave birth ...

Mirra Andreeva, João Fonseca and Vicky Mboko are part of a precocious group of teenagers at the U.S. Open this year.

Venus Williams will be the first 45-year-old to compete at the US Open since 1981 when she faces Karolina Muchova on Monday.