Andreas Seppi extended his remarkable run of five set victories as the Italian 23rd seed defeated Japan's Kei Nishikori 3-6, 6-2 6-7 (4/7), 6-1, 6-4 in the third round at Wimbledon on Saturday.
Seppi, who went the distance to beat Denis Istomin in the previous round, has now won all seven of the five-set matches in 2013 dating back to the Australian Open in January.
The 29-year-old will play former US Open champion Juan Martin del Potro or Slovenia's Grega Zemlja for a place in the quarter-finals.
Seppi, who had never been past the third round at Wimbledon in eight previous attempts, showed impressive stamina as he recovered from two sets to one down to see off the Japanese 12th seed.
Nishikori needed treatment on his back after breaking early in the third set and couldn't maintain his momentum despite winning the tie-break in that set.
Seppi raced away with the fourth set and Nishikori called for a medical time-out to have more treatment on his back before the decider.
The Italian kept the pressure on and landed the killer break before serving out his latest lengthy win.