Defending champion Kim Clijsters admitted she did not have it all her own way as the moved into the fourth round of the Sony Ericsson Open in Miami.
Clijsters, the number two seed, beat Maria Jose Martinez Sanchez 6-4 4-6 6-3 to progress after a difficult afternoon’s work against an aggressive opponent, seeded 27th.
“She had a really flat backhand and a forehand she hit with more top-spin,” said the Belgian.
“It’s always hard when you have a player who plays two totally different shots on each side. You have to be ready to move and adjust all the time.
“A couple of times my footwork wasn’t right and I wasn’t playing how I should have been, but I’m happy I was able to move through today.”
After recent shoulder problems, Clijsters is satisfied with how the injury is standing up.
“I have to focus a lot of my attention and my time on my shoulder, but I know if I can do that that it will stay stable,” she said.
Clijsters next meets friend Ana Ivanovic, the 19th seed, after she went through 2-6 6-2 3-0 when Virginie Razzano had to retire with a thigh strain.
“I didn’t expect it at all,” Ivanovic said.
“She was playing really well in the first set and hardly made any errors. In the second set her shots were a little shorter and I turned it around by being more aggressive and it worked. I was able to put more pressure on her.”
Former champion Victoria Azarenka beat Dominika Cibulkova 3-6 6-3 6-4 after a slow start to their match.
Third seed Vera Zvonareva battled through against 28th seed Jarmila Groth 7-6(4) 6-2 to set up a clash with Marion Bartoli, following the 15th seed’s 6-0 6-2 win over Ekaterina Makarova.
Fifth seed Francesca Schiavone came from a double break down in the second to beat Lourdes Dominguez Lino 6-4 7-6 (2) while number nine Agnieszka Radwanska overcame Maria Kirilenko 7-6 (2) 6-3.
Anastasia Pavlyuchenkova shocked Petra Kvitova 6-4 6-7 (3) 6-0.