Olympic silver medallist P V Sindhu has set up a summit clash with Olympic champion Carolina Marin after a hard-fought win over World Number 4 Korean Sung Ji Hyun in the semi-finals of the India Super Series. Cheered on by a sizable crowd at the Siri Fort Sports Indoor stadium in New Delhi today, Sindhu dished out a superb game to outwit second seeded Hyun 21-18, 14-21, 21-14.Earlier, two-time World Champion Marin of Spain defeated Japan's Akane Yamaguchi, seeded fourth in straight sets, 21-16, 21-14 to reach the finals.