adidas launches the new adidas by Stella McCartney Spring Summer 2011 collection and toasts tennis player, Caroline Wozniacki, for her world number 1 ranking. Since the U.S. Open in 2009 Caroline has been the exclusive face of the adidas by Stella McCartney tennis collection. This year, she proudly secured the year-end number one ranking of the WTA Championships where she proved to be a real rising star playing in the distinctive Sport Performance collection. Available material includes stills of the event in Hong Kong.