Clijsters feels she is nearly over her shoulder problem
Kim Clijsters eased into the third round of the Sony Ericsson Open in Miami but admitted she has not fully recovered from a shoulder injury.
The Belgian second seed thrashed Anastasia Yakimova 6-1 6-1 in her first match since having to quit during her fourth-round contest at Indian Wells.
"It's not fully healed, but it's healing," said Clijsters of her injury.
"After Indian Wells I was pretty worried, but now I feel that I'm almost able to do everything that I want to."
Third seed Vera Zvonareva dropped the first set against fellow Russian and former world number one Dinara Safina but then hit form to win 3-6 6-3 6-2.
In other matches, reigning French Open champion and fifth seed Francesca Schiavone of Italy completed a routine 6-4 6-4 win over Germany's Angelique Kerber.
Polish ninth seed Agnieszka Radwanska beat Czech Barbora Zahlavova Strycova 6-1 6-0, while Czech 12th seed PetraKvitova put out the last American standing in Varvara Lepchenko 6-1 6-2.
French 15th seed Marion Bartoli, who reached the Indian Wells final last weekend, came through against Japan's Ayumi Morita, winning 6-3 2-6 6-1
Bartoli's compatriot Virginie Razzano ended the hopes of Estonian 14th seed Kaia Kanepi with a 6-3 7-6 (7-5) victory, and 22nd seed Alisa Kleybanova also made a second-round exit, beaten 7-5 6-3 by fellow Russian Ekaterina Makarova.