Denmark's former world number one produced a strong performance to see off unseeded Croatian Petra Martic in their semi-final, winning 6-3 6-2.

Wozniacki, 21, dropped her serve only once and it was from the only break opportunity she faced.

"We played tennis on a high level today," she said afterwards. "Petra played a good match, she served well and put pressure (on me) the whole time.

"She slices a lot, so there's no way out. She doesn't want to play long duels so I had to put pressure on her."

Now second seed Kerber stands in her way, with the 24-year-old German recording an impressive 6-2 6-1 win over Serbian third seed Jelena Jankovic.

Jankovic, herself a one-time world number one, made little impression against the Kerber serve, earning only one break point which she failed to capitalise on.