Sloane Stephens of the U.S. reached Wimbledon's fourth round for the first time, coming back to close out an uneven 7-6 (3), 0-6, 6-4 victory over 196th-ranked qualifier Petra Cetkovska of the Czech Republic .
The match resumed after being suspended on Friday because of darkness.
They resumed at the start of the third set, and the 17th-seeded Stephens came out slowly, falling behind 2-0.
But Cetkovska double-faulted three times while letting Stephens take a 4-3 edge.
Stephens then held for 5-3, saving a break point with an ace, and later capped the match with a cross-court forehand winner.
Stephens is in the round of 16 for a third consecutive Grand Slam tournament. At the Australian Open in January, she defeated Serena Williams en route to the semifinals.