Japan's Kei Nishikori advanced to the second round of the Australian Open on Sunday after coming back from two sets down and saving two match points against Brazilian qualifier Thiago Monteiro.Playing in the Grand Slam event for the first time since his 2021 first-round exit, the 35-year-old Nishikori won the 4-hour, 6-minute battle 4-6, 6-7(4), 7-5, 6-2, 6-3 and later spoke about the joy of being back."It was a tough match. I'm really glad to have won even if it took five sets," Nishikori said. "Until the second set, Monteiro played well enough to win."I played better little by little and …READ FULL ARTICLE