KEY BISCAYNE, Fla. -- Kim Clijsters has earned her 500th career victory by beating Maria Jose Martinez Sanchez 6-4, 4-6, 6-3 at the Sony Ericsson Open.
Clijsters, who won the tournament in 2005 and 2010, advanced to the fourth round despite 10 double-faults and 39 unforced errors Sunday. Seeded second, Clijsters next plays No. 19 Ana Ivanovic, who won when Virginie Razzano retired trailing 2-6, 6-2, 3-0.
Reigning French Open champion Francesca Schiavone, seeded fifth, beat Lourdes Dominguez Lino 6-4, 7-6 (2). No. 9 Agnieszka Radwanska eliminated No. 24 Maria Kirilenko 7-6 (2), 6-3, and No. 15 Marion Bartoli defeated Ekaterina Makarova 6-0, 6-2.