ISTANBUL, May 24, 2007 (AFP) - Results from the fourth day of the 200,000-dollar WTA tournament here (x denotes seeding):
Quarter-finals
Maria Sharapova (RUS x1) bt Agnieszka Radwanska (POL x7) 6-2, 3-6, 6-0
Elena Dementieva (RUS x2) bt Catalina Castano (COL) 1-6, 6-4, 6-4
Alona Bondarenko (UKR x5) bt Patty Schnyder (SUI x3) - walkover (Schnyder injured)
Aravane Rezai (FRA) bt Meghann Shaughnessy (USA) 1-6, 6-1, 6-4