Sorry if I'm late to the party on this, but is Sarah Riske (b. 1981, WTA highest rank of #254) the older sister of Alison Riske (b. 1990)? Because I have to say that they do not look alike at all.
I remember noticing Sarah playing at some challenger events in France around 2003-04. She was notable due to her extremely tall height (about 1.88m, close to height of Sharapova & Davenport). However despite her size she was not a big hitter and played a very scrappy allcourt type of game, which was quite enjoyable to watch and won her some matches on ITF circuit.