NEW DELHI, Aug. 7 -- India's chief doubles coach Tan Kim Her is maintaining an approach of caution and optimism as the BWF World Championships inch closer. Central to India's hopes at the prestigious annual event is the top men's doubles pair, Satwiksairaj Rankireddy and Chirag Shetty. Returning to action following a planned break and physical rehabilitation, the duo will anchor the home campaign. Tan emphasised that managing lingering physical issues and mental sharpness will be the deciding factors at the Indira Gandhi Indoor Stadium from August 17-23. Addressing the primary concern surrounding the 25-year-old Rankireddy's fitness, Tan confirmed that the hard-hitting shuttler's shoulder has shown significant recovery and is clear to return to high-level play. However, Tan acknowledged that managing the shoulder remains an ongoing process due to historical wear. "His shoulder has almost fully recovered now and he is ready to play. He is ready now," said Tan, who originally paired Rankireddy and Shetty a decade back. "He has gone under rehab. His shoulder has improved a lot. Of course, the rehab is still there, but he is getting much better." "Satwik's shoulder (issue) is from 2018, when he had the tear. It has been on and off. Hopefully this time, he can overcome (the injury). That is my concern. Other than that, both of them are very committed, very disciplined. But with the injury there, we cannot do anything," said the Malaysian. Rankireddy and Shetty ended their two-year title drought in May when they won the Singapore Open. But the injury forced the world No.5 pair to retire from the first rounds of both Indonesia Open (June) and Japan Open (July) after which they took a rehab break to prepare for the Worlds. The primary focus now shifts to match rhythm. While their preparation has been structured, regaining tournament intensity after a month off the circuit remains critical. "After Satwik-Chirag won the Singapore Open, the confidence was very good. But after that they had a break. Preparation has been good, but the important part is confidence. Since they have been out for almost one month plus, whether they can get the rhythm back or not, is important. But they are positive. They should be okay." Seeded fifth, the ace pair have received a favourable draw. They will likely face their real test in the quarter-finals against Paris Olympics silver medallists Liang Wei Keng and Wang Chang of China....