Laura Robson has joined fellow Brit Heather Watson in bowing out of the Japan Open after she lost to Kimiko Date-Krumm in Osaka.
It is the second time that Robson has lost at the event to the Japanese veteran, with Date-Krumm winning 6-3 6-3 in 2010.
And the 43-year-old prevailed again in straight sets, this time beating the seventh seed 6-4 6-4.
The match had started so well for Robson as she raced into a 3-0 lead, only for Date-Krumm to break back and level at 3-3.
Robson clung on to hold serve in the seventh game, however she had no such luck in the ninth as Date-Krumm broke and then clinched the first set.
The duo exchanged breaks in the second set, but with Date-Krumm able to attack Robson's stuttering second serve the Japanese was able to claim a decisive advantage in the ninth game once again.
Robson desperately fought to save the match, however Date-Krumm held her nerve to claim the win.
Vania King caused an upset as she rallied from a slow start to oust No 4 seed Flavia Pennetta in three sets.
Despite losing the first set, the America regrouped to finishing strongly, securing a 3-6 7-5 6-0 victory.
Second seed Sabine Lisicki and No 6-ranked Madison Keys came through their opening round encounters unscathed.
Lisicki was made to work hard for her 7-5 7-6 (7-1) win over Chanelle Scheepers, while Keys registered a routine 6-3 6-2 victory against Anna Karolina Schmiedlova.
Chinese duo Zheng Jie and Zhang Shuai both recorded straight-sets wins, respectively beating Sharon Fichman 6-2 6-1 and Anabel Medina Garrigues 6-0 6-3.
Belinda Bencic saw off Lauren Davis 6-3 7-5, Luksika Kumkhum beat Ayumi Morita 6-2 6-1 and Polona Hercog edged out Petra Cetkovska 6-4 5-7 6-1.