Denmark’s Holger Rune fought back from a match point down to reach the Japan Open semi-finals after beating Kei Nishikori 3-6, 6-2, 7-5 on Sunday. Denmark’s Holger Rune fought back from a match point down to reach the Japan Open semi-finals after beating Kei Nishikori 3-6, 6-2, 7-5 on Sunday.