Tennis - Tennis: Nishikori retires injured from Wimbledon warm-up in Halle

Kei Nishikori from Japan reacts as he plays against Karen Khachanov from Russia during the ATP tournament tennis match in Halle, western Germany, on June 22, 2017. (AFP Photo/CARMEN JASPERSEN)

- Japanese world number nine Kei Nishikori was forced to retire injured in the second round of the Wimbledon warm-up tournament in Halle. Nishikori, seeded third in the grasscourt tournament, was trailing 3-2 to Russia's Karen Khachanov when he felt a pain in his hip. The 27-year-old Olympic bronze medallist had hip treatment courtside but in the end was forced to concede defeat. Wimbledon gets underway on July 3 in London.