MELBOURNE, Australia – Japan’s Kei Nishikori advanced to the second round of the Australian Open after Polish wild card Kamil Majchrzak retired due to cramping during Tuesday’s match.
Nishikori beat Majchrzak 3-6, 6-7 (6), 6-0, 6-2, 3-0.
The Japanese, who came to Melbourne fresh off a win in Brisbane, was taken by surprise by Majchrzak, who is ranked 176th and began cramping badly after winning back-to-back sets.
Nishikori, who lost in the round of 16 to Roger Federer last year, will now meet Croatian veteran Ivo Karlovic, who defeated Polish Hubert Hurkacz 6-7 (5), 7-6 (5), 7-6 (3), 7-6 (5).
Russian Daniil Medvedev (15) easily advanced to the second round after beating South African Lloyd Harris in less than two hours.
Medvedev will next face American Ryan Harrison, who dismissed Jiri Vesely in the second round.