Injury-plagued Kei Nishikori expresses optimism as he looked forward to his first Australian Open tennis action in four years ...

Injury-plagued Kei Nishikori expressed optimism Thursday as he looked forward to his first Australian Open tennis action in four years, proclaiming himself fit and more relaxed with a game that was ...

Aryna Sabalenka of Belarus plays a forehand return to Zheng Qinwen of China during the women's singles final at the ...

Now 35 years old, just a few years younger than Novak Djokovic, Nishikori is navigating a new era of tennis.