James Waterson reports on the weeks tennis news. Most of the top women returned to action at the Pan Pacific Open in Tokyo, where World No. 1 Caroline Wozniacki was looking to defend her title. But she fell in the third round, while US Open champion Samantha Stosur was beaten by Maria Kirilenko in the second round. Meanwhile, Donald Young, Gael Monfils and Andy Murray made the final four at the Thailand Open, and Kei Nishikori upset Nicolas Almagro in Malaysia. On the other side of the world, Novak Djokovic made a UNICEF visit to a Serbian pre-school.