Who is a former coach of a World No. 1 player, Elizabeth Smylie or Paul Annacone?
Paul Annacone: Paul Annacone (born March 20, 1963) is an American former touring professional tennis player and current tennis coach. Paul Annacone:  He is the former coach of open-era leader in Grand Slams Roger Federer and former World No. 1 Pete Sampras. Elizabeth Smylie:  She also won three singles titles and 36 doubles titles.
i don't know