Star badminton player P.V.Sindhu had to be content with a runner-up finish at the Indonesia Open after losing the title clash in straight games to Japan's Akane Yamaguchi, Sunday. Sindhu lost the final of the BWF Tour Super 1000 tournament 15-21 16-21 to the fourth seed. The Olympic silver medallist had come into the contest with a favourable 10-4 head-to-head record against the Japanese.