An injured Novak Djokovic quit because of a torn muscle in his left leg after dropping the first set of his Australian Open semifinal against Alexander Zverev on Friday.

Madison Keys has saved a match point and upset No. 2 Iga Swiatek 5-7, 6-1, 7-6 (10-8) in a high-intensity, high-quality ...

Madison Keys of Rock Island beat Iga Swiatek of Poland in a third-set tiebreaker Thursday to advance to the women's ...

When Madison Keys finally finished off her 5-7, 6-1, 7-6 (10-8) upset of No. 2 Iga Swiatek in a high-intensity, high-quality Australian Open semifinal Thursday night, saving a match point along the ...