Japanís Kei Nishikori celebrates after his victory against Brazil’s Thiago Monteiro in their men’s singles match on day one of the Australian Open tennis tournament in Melbourne on January 12, 2025. (Photo by Yuichi YAMAZAKI / AFP

Kei Nishikori fought back from two sets down in his Australian Open first-round matchup Kei Nishikori fought back from two sets down in his Australian Open first-round matchup Having maintained his record as a five-set specialist on his triumphant A