Japan's Kei Nishikori married 29-year-old former model Mai Yamauchi last week, the former world No. 4 men's singles player announced Friday on his personal app."I want to prepare thoroughly, and with my new companion, look forward to restart for next season," Nishikori posted, referring to fitness issues that wiped out almost all of his 2020 season.Nishikori, who will turn 31 on Dec. 29, and his bride have been dating for five years. She has been accompanying him and supporting him on tour and at Grand Slam events. They registered their marriage on Dec. 11.Related coverage:READ FULL ARTICLE