Clijsters books last-four spot

Kim Clijsters kept her Australian Open title defence on track today by moving into the semi-finals with victory over Caroline Wozniacki – stripping the Dane of her number one ranking in the process.

Showing no signs of the ankle injury sustained in her thrilling fourth-round win over Li Na – a match in which she had to save four match points – the Belgian had too much know-how for Wozniacki, whose search for a maiden grand slam title goes on.