Wozniacki threw in some high looping topspin to thwart the teenager 's rhythm .
Wozniacki drew a wild backhand error snatching her sixth straight game to start the second set with a break .
Throwing in some high looping topspin to thwart the teenager 's rhythm , Wozniacki drew a wild backhand error snatching her sixth straight game to start the second set with a break .