India Questions Roger Federer, Pete Sampras

In an exclusive interview to NDTV.com, two of the world's greatest-ever tennis players, Roger Federer and Pete Sampras, talk to Prannoy Roy about competition, inspiration, and ambition. Indian icon Amitabh Bachchan shares his career secrets, and questioners include tennis great Boris Becker and actress Deepika Padukone. (Highlights from this all-star interview)