Kei Nishikori clinched victory in the fourth round of Wimbledon for the first time in his career Monday after surviving a tough test against Ernests Gulbis, beating the Latvian 4-6, 7-6(5), 7-6(10), 6-1.Later in the day, three-time champion Novak Djokovic cruised into the quarterfinals with a dominant round-of-16 win over Russia's Karen Khachanov 6-4, 6-2, 6-2, the Serbian setting himself up for a clash with Nishikori in the men's quarterfinals on Wednesday.Nishikori's win, which came at the 10th attempt, made him the first Japanese since Shuzo Matsuoka in 1995 to secure a quarterfinal bert…READ FULL ARTICLE