PV Sindhu pulled out of the Thailand Open, but Saina Nehwal returns to the circuit after an injury lay-off, which forced her to miss the Indonesia and Japan Open tournaments. With Japanese girls Nozomi Okuhara, Akane Yamaguchi and Tai Tzu Ying also pulling out, the BWF Super-500 event has lost its sheen. Given the scenario, Saina is expected to reach the semi-finals. The 29-year-old will begin against a qualifier and is expected to face either Sayaka Takashi of Japan or Ruselli Hartawan of Indonesia. She may square up against China's Chen Yufei or He Bingjiao in the semi-finals.