Saina Nehwal's enemy is a special disease, when will she retire from badminton; she herself made a big disclosure

Saina Nehwal has revealed that she is suffering from arthritis. She will have to decide about her future by the end of the year. Nehwal, who won a bronze medal for India in the 2012 London Olympics, was last seen at the Singapore Open more than a year ago. Nehwal has indicated that she is in the last phase of her career.

  Olympics