James Waterson and Lauren Lynch report on the week’s tennis news. Novak Djokovic clinched the No. 1 ranking after Rafael Nadal lost to Florian Mayer in the third round of the Shanghai Rolex Masters. Three World Tour Finals hopefuls, Mardy Fish, Tomas Berdych and Jo-Wilfried Tsonga, lost early as well. Meanwhile, Samantha Stosur and Petra Kvitova are still in the running for the titles in Osaka, Japan and Linz, Austria. Finally, Serena Williams announced she will play mixed doubles with Andy Roddick at the Australian Open.
