Jankovic and Ivanovic coast, Davenport toils

By Mark Lamport-Stokes

INDIAN WELLS, California (Reuters) - Serbian world number four Jelena Jankovic cruised through to the Pacific Life Open fourth round while twice champion Lindsay Davenport had to work a little harder on Monday.

Third-seeded Jankovic shrugged off gusting winds to sweep aside Ai Sugiyama of Japan 6-1 6-1 before American Davenport battled to a 6-4 5-7 6-2 win over Taiwan's Chan Yung-January

Top-seeded Serb Ana Ivanovic, the world number two, also progressed with great ease, dispatching Italy's Tathiana Garbin 6-3 6-0 in Monday's late match.

Jankovic secured victory in 58 minutes after dominating her match with rasping groundstrokes on the showpiece Stadium Court at the Indian Wells Tennis Garden.

"I was very focused on the court and I really tried to do my job out there," Jankovic told reporters.

"I didn't want to let her get into the match. Especially with the wind, you cannot lose your concentration because, as soon as you do that, you start making a lot of errors and lose your rhythm."

Jankovic struggled with her serve in the swirling winds and double-faulted six times.

"I had a different toss every time," the 23-year-old said. "I was trying to find a rhythm but I couldn't."