Former India coach Vimal Kumar suggests that PV Sindhu's confidence has taken a hit due to her repeated failures in tournaments this season, and it might be unreasonable to have high expectations from the double Olympic medallist at the upcoming Asian Games.Sindhu has faced significant challenges since her return from a five-month hiatus following an ankle injury she sustained on her way to winning the Commonwealth Games gold last August.In her quest to reverse this downward trend, the 28-year-old sought the guidance of the legendary Prakash Padukone and...