Ninth-seeded Ana Ivanovic advances to second round of Qatar Open
Ivanovic was leading 7-5, 1-0 when Daniela Hantuchova withdrew with a right knee injury after falling 0-40 behind in the second game.
Elsewhere, American Bethanie Mattek-Sands upset 15th-seeded Eugenie Bouchard of Canada, a recent Australian Open semifinalist, 7-5, 6-1.
We've Got Apps Too
Get expert analysis, unrivaled access, and the award-winning storytelling only SI can provide — from Peter King, Tom Verducci, Lee Jenkins, Grant Wahl, Andy Staples and more — delivered straight to you, along with up-to-the-minute news and live scores.