Tennis: Nishikori advances after Majchrzak retirement at the Australian Open

Kei Nishikori rallied from two sets down and won 10 consecutive games before Kamil Majchrzak retired with the score at 3-6, 6-7, 6-0, 6-2, 3-0 in his match at the Australian Open. Nishikori fell behind two sets to love before coming back in the third as his Polish opponent fought off cramping that would eventually cause him to quit in the fifth.