World no. 8 Agnieszka Radwanska isvery happy with the court surface being used at this week's WTA Championships in Istanbul. The temporary indoor hard court is built on top of a basketball court. "It's pretty slow. It's weird bounces, and surface very sticky so it's hard to run, as well," she told reporters.

Caroline Wozniacki added: "It's slow and doesn't bounce very high. It's sticky and you feel it in the legs. It's a little bit uneven too. But for me I like it. You just need to be prepared for longer matches."