Caroline Wozniacki won 12 straight games to beat Flavia Pennetta of Italy 6-2, 6-0 on Thursday, setting up a semifinal against Marion Bartoli at the Qatar Ladies Open.
The No. 1-ranked Dane, who won the Dubai title last week, extended her winning streak to eight matches after losing the first two games of the match.
Wozniacki wore a Liverpool football shirt with Steven Gerrard's name on the back during the warmup on Thursday.
"I'm a big fan of Liverpool," Wozniacki said. "Since Liverpool is playing tonight (against Sparta Prague), I thought it would be nice and even the fans liked it."
Wozniacki made just seven unforced errors against Pennetta, who appeared to lose heart after dropping serve in a 12-minute fourth game. The top-seeded Wozniacki finally won it with one of her trademark backhand returns to draw level at 2-2.
"I was playing really good tennis," Wozniacki said. "I stayed calm and had to go for my shots."
Pennetta, who has never won against Wozniacki in their four previous meetings, could fair no better in the second set, committing 21 unforced errors.
Bartoli ended Peng Shuai's challenge in just 71 minutes with a 6-2, 6-2 victory. Peng lost her serve in the first game and could not recover from the initial blow.
"I thought I played well," Bartoli said. "I could have finished earlier. I mean, it could have been 6-1 in the second instead of 6-2, even 6-0, but overall it was a great performance."