London: Japan's fifth seed Kei Nishikori pulled out of Wimbledon on Wednesday after a calf injury prevented him from playing his second round clash. Nishikori was scheduled to face Colombia's Santiago Giraldo for a place in the last 32.
The 25-year-old first suffered the injury in Halle last month when he was forced to retire in the semi-finals. He had needed five sets to beat Simone Bolelli in the first round at Wimbledon on Monday and felt the injury again.
"It got worse in the fifth set of that match, it hurt so much," said Nishikori. "It hurt to walk and run today so I decided not to play."