Australian Open champion Madison Keys was undone by 89 unforced errors and was upset in the first round of the U.S. Open by Mexico’s Renata Zarazua on Monday.

This year, the Australian Open crowned Jannik Sinner in the men's draw and Madison Keys in the women's draw. From January 12 ...

NEW YORK (AP) — Pretty much from the get-go at the U.S. Open on Monday, Madison Keys could tell she wasn't hitting the ball well or feeling very much at all like the self-confident player who claimed ...