MEMPHIS, Feb. 19 (UPI) -- Germany's third-seeded Sabine Lisicki advanced but No. 5 Lucie Hradecka of the Czech Republic took an early tumble Tuesday in first-round action at Memphis.
Lisicki notched a straight-set victory over American Madison Keys 7-5, 6-3 to advance to the second round of the U.S. National Indoor Tennis Championships.