Johanna Konta escaped a great lead in the second set as she suffered a defeat in the second round of the Pan Pacific Open against Donna Vekic.
The British No. 1 was eliminated in the first round of Carolina Garcia from the US Open last month and their fragile confidence moved back into Tokyo in the foreground. They lost only two games in the qualifying round Gabriela Dabrowski in the first round, but after they had led in the second set with a double break against Vekic 4: 1, Konta lost six of the last seven games and lost 6-3, 7-5.
Croatia's Vekic, who reached two places below Konta in the current rankings at position 45, struggled in the first set with their serve, but the British player was unable to take advantage and twice failed herself.
Konta looked as though he'd been shooting things in the second set, hiding the mistakes and creating a seemingly crucial lead.
But nerves were evident when Vekic withdrew from 4-1 to 4-3 and Konta was broken to love while she tried to serve the sentence. She then missed more chances for another break, her forehand collapsed completely before Vekic broke again to claim the win.