Maria Sharapova reached the U.S. Open's fourth round by taking five of the last six games after her opponent, Sabine Lisicki, was warned by the chair umpire about receiving coaching help. (Also Read: Federer Advances to the Third Round)
Avoiding the sort of surprise that saw half of the top eight seeded women lose already, No. 5 Sharapova eliminated No. 26 Lisicki 6-2, 6-4 in a hard-hitting match that began Friday night and ended past midnight Saturday.
Five-time major champion Sharapova trailed 3-1 in the second set. But she turned things around as Lisicki went back and forth with chair umpire Carlos Ramos over whether she was getting instructions from her entourage.
Still, Sharapova did not wrap things up easily. She got broken while serving for the victory at 5-3, then needed three match points to close it. (Read: Paes-Stepanek Enter Pre-Quarters)